Sick and Nasty. These guys do for elves what the Sabbat did for Vampires in Vampire: the Masquerade. The book is strictly True20, but given that True20 is relatively rules light it's pretty easy to adapt (if only the themes) to any 3.x game you might be playing. In fact I would recommend this book as one of those rare-cross game purchases that could spruce up your "regular" game and give it a distinct feel - especially if you're tired of drow (who seem more and more watered down these days). Blight elves don't pull any punches. True20 has found it's Book of Vile Darkness.
While I'm a fan of classic 80's Dragon more so than I am of modern 90's through 2001-ish Dragon, I have to say the stuff Paizo included was pretty decent. The artwork on the inside covers was nice (a few of my recent favorites where shown).
The Races were interesting. Dvati, Lupin and Tibbits where my stand outs. I think I might allow the Dvati (soul twins) in my game. It just looks like a cool concept and an interesting role-playing challenge.
Core Classes: The Battle Dancer, Deathmaster, Urban Druid and the "orginal" Jester (by Roger E. Moore sorry Richard) all kick some serious butt. The battledancer in particular is going right in to my game. And I have a player who's seriously looking at the Savant (jack-of-all-core classes and a handy mentorish character to have around). I haven't gotten to the Sha'ir yet, maybe today.
I've never been a big fan of prestige classes. Most of the time they are just too campaign specific and most these look to fall into that territory.
Feats: Yes! I can finally make that Final Fantasy style dragoon I've always wanted. You know Freya from FF9 she jumps in the air (Vault) and hammers you with her partisan (from the equipment chapter). Cutpurse works nicely for the Mug ability. Oh, and Heads Up, which allows you to use the severed head of a creature with a gaze attack as a waepon is just classic. Though of limited use in most games it's worth it even if you can only use it once, just for style's sake. Now you to can be a "Kung Fu Genius".
Granted, if you've been buying every Dragon for the last twenty years and have it all catalogued somewhere then perhaps this isn't the book for you. If like me, you like everything updated and in one book then this might be the book for you. And if you haven't ever read Dragon before then this is definitely the place to start.
GGG
There's more but as the editors will tell you I run long.