Wow, SIGGRAPH was awesome!
I saw and learn so many things that I can't list them here. All I can say is that it was nice attending movies (Weta, Pixar, ILM, Dreamworks, etc), games (Crytek, Dice, Valve, etc) as well as researchers presentations. Now I can put a face on those names I often encounter when reading research papers or presentations.
Here are some links with very interesting courses and presentations about graphics: