nharwell: Don't get me wrong, I think Savage Species is a great book. It is probably the best book WotC has put out since MotP.
However, it is very inappropriately subtitled and marketed because the book sucks as a guide for PC's as monsters.
What it is excellent as is a guide to DMing NPC's who are monsters, and creating new monstrous NPC's. The portion of the book recieving the most attention on the boards - the suggested monster class advancements for a variaty of odd monsters is actually one of the least interesting and useful things in the whole book. The best use I can make out for it, is a guideline for converting (Ravenloft style) NPC's into monstrous NPC's over time. In other words, I might add a few levels of 'Minotaur' to a human with a particularly evil taint, but I think 1st level 'Minotaur' as a PC class is fairly ridiculous. Other examples (say Titan) are even worse.
I guess, since I'm not actually selling anything, that I can be a little braver than the publishers of the book and say that sure PC's can be awakened animals. I wouldn't exactly recommend it, but it isn't going to break any games. It wouldn't be quite as bad as playing something that can't talk, but I think that it would get old fairly quickly.
Since I'm primarily interested in monstrous rules as a tool for NPC construction and balance, the unfunness of a single character doesn't bother me nearly as much. After all, as a DM, I've got a pletheora of characters to choose from (whether I'm completely happy with that fact or not).