Here's my attempt at an "Order of the Long Hand" PrC. Kudos to Nifft for the name and initial idea. Even if we disagree about the mechanics of the class, he had a lot of cool ideas that I shamelessly stole and re-worked.
Order of the Long Hand (OLH)
Most Monks dedicate themselves to a broad array of disciplines, using their training and insights to develop a wide variety of powers and abilities. However, some groups of monks find a particular path that intrigues them, and pursue that to the exclusion of all others. One such is the Order of the Long Hand, which concentrates on the abilities to be gained from continually focussing their Ki.
Requirements:
Alignment: Any Lawful
Base Attack Bonus: +4
Feats: Deflect Arrows, Expertise, Stunning Fist, Power Attack
Skills: Concentration (8 ranks), Balance (5 ranks)
Benefits:
Base Attack Bonus: as Monk (3/4); OLH BAB stacks with Monk's Unarmed BAB
Hit Dice: d8
Saves: as Monk
Skill Points: 4 + Int Mod
Class Skills: Balance, Climb, Concentration, Craft(any), Escape Artist, Hide, Jump, Knowledge (Arcana), Listen, Move Silently, Perform, Profession(any), Spot, Swim, Tumble
Weapons & Armour: same as Monk. An OLH who wears armour loses all class abilities except Unarmed Damage until the armour is removed.
Granted Abilities by Level
1) Speed, Unarmed Damage, Long Palm
2) Projected Blade, Wide Palm (2)
3) Long Foot, Sundering Strike
or Open Hand
4) Warding Palm, Swift Palm
5) Ki Strike, Wide Palm (3)
6) Projected Foot
7) Projected Palm, Shattering Strike
or Projected Disarm
8) Projected Hand, Wide Palm (4)
9) Lethal Strike
10) Projected Fist
Speed: (Ex/Su) The character's base move increases in the same manner as for a Monk of their size category. If the OLH also has Monk levels, the two classes stack for the purposes of calculating the character's base move.
Example: a Monk 6 / OLH 4 has a base Move of 60', the same as a Monk 10 would have.
Unarmed Damage: (Ex) The character's unarmed damage increases in the same manner as for a Monk of their size category. If the OLH also has Monk levels, the two classes stack for the purposes of calculating the character's unarmed damage.
Example: a Monk 6 / OLH 4 does 1d10 damage with their unarmed attacks, the same as a Monk 10 would do.
Long Palm: (Su) The character can project force from their palm. As a full round action, the character may project an invisible force against any target - animate or inanimate - within their normal reach. This force has an effective Strength of 10+OLH class level. It can be used to try and force doors, or as a Bull Rush, acting as a Charging Medium-sized creature when so used.
Wide Palm: (Ex) The character may deflect more than one missile per round; two at 2nd level, three at 5th level, and four at 8th.
Projected Blade: (Ex) The character may throw weapons with precision and force. When throwing any non-improvised weapon that is 'light' for their size category, the OH substitutes the normal BAB and damage of the weapon with their Unarmed BAB and Damage instead.
The OLH can only throw one object per attack when using this ability: it is not possible to properly focus the mind if throwing more.
Long Foot: (Su) The character can project their Ki as solid, focused rays of force. As a standard action, the character may make the equivalent of an Improved Trip attempt on a target up to 5' outside their normal reach.
Sundering Strike: (Ex) At 3rd level, the OLH may choose
either this ability,
or the Open Hand ability. If they choose Sundering Strike, the character gains the ability to strike and damage objects (including weapons) with an unarmed attack, without provoking an attack of opportunity.
Open Hand: (Ex) At 3rd level, the OLH may choose
either this ability,
or the Sundering Strike ability. If they choose Open Hand, the OLH knows that the threat of a weapon is an illusion; it is the hand which wields the weapon that is the threat. They know to attack the hand and break the illusion: they are considered to have the Improved Disarm feat when fighting unarmed.
Swift Palm: (Su) The character can use their Long Palm ability as a standard action.
Warding Palm: (Su) the OLH is able to turn aside blows with the force of their Ki, gaining a deflection bonus to AC equal to one half their OLH class level, rounded down. This ability replaces (does not stack with) a Monk's level-based bonus to AC (it does stack with the Wisdom-based AC bonus, however).
Ki Strike: (Su) the OLH's unarmed attack becomes empowered with Ki. The unarmed strike damage from such an attack can deal damage to a creature with damage reduction as if the blow were made with a weapon with a +1 enhancement bonus.
Projected Foot: (Su) The character can now use their Long Foot ability as an Attack of Opportunity
Shattering Strike: (Su) If the OLH possesses the Sundering Strike ability, then at 7th level they are able to employ their focused Ki to reduce the Hardness value of objects they strike by half their OLH class level.
Projected Disarm: (Su) If the OLH possesses the Open Hand ability, then at 7th level they are able to project that ability up to 5' outside their normal reach. They cannot use this ability as an Attack of Opportunity. This ability uses Wisdom for the attack modifier, rather than Strength.
Projected Palm: (Su) The character can project their Long Palm ability up to 5' outside their normal reach, and can use it as an Attack of Opportunity: a successful Bull Rush attempt prevents the target from moving out of the threatened space.
Projected Hand: (Su) The OLH has fine-tuned their control to the extent that they can move small, light objects with reasonable control, rather than simply expelling force in a specific direction. The OLH is considered to have the equivalent of a Mage Hand spell running at all times.
Lethal Strike: (Su) The character's Ki powers allow them to guide their strikes so accurately that their unarmed attacks now have a base threat range for critical hits of 19-20/x2, rather than the standard 20/x2. Note that this is an increase to the base range, not a multiplier - if the OLH also has Improved Critical (Unarmed Strike), they would threaten a critical on any roll of 17-20.
Projected Fist: (Su) The character has focused their Ki to such an extent that they can make unarmed attacks at a distance. The character can employ any of their attacks up to 5' outside their normal reach. The character's reach attacks use Wisdom for their attack modifier, rather than Strength, and inflict only the base damage (with no bonus for either Strength or Wisdom). Power Attack cannot be used with these attacks. When attacking foes within their normal reach, the OLH can either do so by using this ability (in which case the rules above apply) or their normal melee attack (in which case Strength is used for both attack and damage modifiers, and Power Attack can be used).
Ex-OLH: A monk who becomes non-lawful cannot gain new levels as an OLH but retains all class abilities.
Multi-class Note: Monk characters can freely multi-class with this class. In other words, you can give your monk PC an OLH level, then return to the monk class for your next level, take one or more OLH levels after that,and so on.