Well I found out Dragon Magic and Races of the Dragon have been banned because in the homebrew world there is no place for dragons (or at least dragons interacting with the lesser races). As for the others, still not sure why they're banned.
So... you're playing "Dungeons"?
This is why I prefer inclusive book lists. If you say "everything except X" and then someone comes in with "Y" that you've never heard of, you have to learn it quickly, accept not knowing what your players might bring to the table, or just ban it too. On the other hand, if you say "X, Y, and Z, nothing else", you know more or less what you're getting into and your players don't have to keep running to you for approval.
But I did find out we get 1 free LA. Yay.
Catfolk (RotW) with Catfolk Pounce and Neraph Charge (Planar Handbook)?