trainz - you are on the same track of mind as I am.
The following are feats designed for the single weapon fighter that our group playtested (nothing rigorous) over a 2 year period.
Single Weapon Focus [General, Fighter]: You are adept in fighting with but a single one-handed weapon in your hand, empty on the other.
Benefit: When fighting with a one-handed weapon in your primary hand and empty-handed in your off-hand, you gain +2 competence bonus to your attack roll with that weapon. Your off-hand must be free in order to maintain your balance (this does not prevent you from using potions or handling similar small lightweight objects such as a rope, a chandelier, a glass of wine, or a lady’s waist); however, you can use your off-hand to strike unarmed (incurring two-weapon fighting penalties as normal). You lose the competence bonus to attack when fighting two-handed.
Note: This fighting style is more readily used with rapiers and among nobles of the heartlands. Duels amongst nobles are held in tradition of this style. You can not use the Power Attack feat while using the Single Weapon Focus feat unless you are proficient with all simple and martial weapons and have the Combat Reflexes feat.
Prerequisites: STR 13+, DEX 13+, Base Attack Bonus +2.
Single Weapon Specialization [General, Fighter]: You are a truly skilled with a single one-handed weapon in your hand, empty on the other.
Benefit: When fighting with a one-handed weapon in your primary hand and empty-handed in your off-hand, you gain +4 competence bonus to your attack roll with that weapon. You can not hold anything weighty in your off-hand as that tampers with your balance; however, you can use your off-hand to strike unarmed (incurring two-weapon fighting penalties as normal). As all named bonus (except dodge) does not stack, the competence bonus overlaps with
Single Weapon Finesse and does not stack. You lose the competence bonus to attack when fighting two-handed.
Note: You can not use the Power Attack feat while using the Single Weapon Specialization feat. When using the Combat Expertise feat with Single Weapon Specialization, you gain one-and-one-half the AC bonus gained from each base attack bonus that you forgo.
Prerequisites: STR 15+, DEX 15+, Base Attack Bonus +6, Combat Reflexes, Single Weapon Focus, Proficient with all simple and martial weapons.
Single Weapon Finesse [General, Fighter]: You are can fight with but a single one-handed weapon with great finesse.
Benefit: When fighting with a one-handed finessed weapon in your primary hand and empty-handed in your off-hand, you gain +4 competence bonus to your attack roll with that weapon. You can not hold anything weighty in your off-hand as that tampers with your balance; however, you can use your off-hand to strike unarmed (incurring two-weapon fighting penalties as normal). You lose the bonus to attack when fighting two-handed.
Note: You can not use the Power Attack feat while using the Single Weapon Finesse feat. When using the Combat Expertise feat with Single Weapon Finesse, you gain one-and-one-half the AC bonus gained from each base attack bonus that you forgo. You are considered to have Strength of 15+, Dexterity 17+, and the Combat Reflexes feat for purposes of applying for feats with Single Weapon Specialization as a prerequisite.
Prerequisites: DEX 15+, INT 15+, Base Attack Bonus +8, Single Weapon Focus, Proficient with all simple and martial weapons, Finessed with weapon.
