Besides offering up 100% more ninjas, the new Dungeon has quite alot to offer. First up...
Gluttony - A side trek adventure for 4th lvl characters involving some investigating and combat.
Wings, Spikes and Teeth - Another side trek adventure, this one for 8th lvl characters in a non urban setting. A very quick and neat little encounter involving a pride of lions lead by a rogue Manticore.
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Flood Season - The 2nd part in the Cauldron campaign, this is designed for 4th lvl PC's and takes them up to 6th lvl by the end. This time the adventurers leave Cauldron and need to find a missing magical item to save the city.
It even has stats on the Were-Baboon!
An interesting tidbit about 3.5 e gleamed so far from it, Barbarians get Trap Sense. There is a 3rd lvl barbarian who has "Trap Sense (+1)" along with uncanny dodge. Not quite sure what it is, perhaps the +1 dodge bonus to AC to avoid traps?
Later in the adventure there is a 5th lvl rogue who does not have this ability, but does have "Uncanny Dodge (Dex bonus to AC)"
Second interesting bit, a 1st lvl Bard has "Inspire Courage +1" One of the new changes for bards, though not sure how it works still.
The new subtypes are nice for example Skulvyn: Large Outsider (Aquatic, Chaotic, Evil, Extraplanar) or Bloodbloater Ooze Swarm (Aquatic, Swarm of Diminutive Oozes)... first look at the Swarm subtype.
A lvl 1 ranger has Favored Enemies (Elves +2) Looks like favored enemies got a serious boost.
On Lycanthropic Level Adjustments: for example, were-baboon. Same as character, +2 (afflicted) or +3 (natural). In addition, the character's effective character level is increased by +1 (the racial hit dice of a baboon) I can only assume that the difference between Natural and afflicted is a matter of if you can control the shape changing. Definatly worth the level adjustment. I also like that they include the racial HD of the baboon in the ECL, much easier to figure it out now.
New 2nd lvl Arcane spell - Scorching ray, no other description though.
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Monster Tokens - 31 Foes from the Fiend Folio, all very high quality art work of various sizes and powers.
Now, onto the flipside... Polyhedron
The Kage - D20 modern Advesaries. A very Japanese feeling group of thugs designed to fit into any D20 modern campaign that needs some CR 9 baddies to slay. Each has an extensive background and detailed statblock.
Includes a new D20 Modern feat: Gun Fu, very interesting (see later post for more details on it)
I, Jensaarai - Write up and Prestige class for Starwars D20, about a type of Jedi who use both Sith and Jedi teachings.
Into the Bright Desert - A very extensive write up with maps on the Bright Desert in Greyhawk, along with a new monster: Norker a type of toothy goblin with tough skin.
Global Positioning - Cartographic maps for D20 Modern, this time of a Municipal Police Station
Lastly, a new comic called Downer, quite funny in my opinion.
Thats all, not sure if I can post more details, or if someone has already done this and I'm wasting my time. Any questions? Fire away, ill answer as far as my lawyer will let me
[Edit: minor errors in spelling fixed, and yes it is the swarm subtype

, few consistancy errors fixed. ]