This is a website I came across when I was linked from the Cobb Tuning Website. They have some really great footage from SEMA and some drift events, and they stream in HD!

http://www.hspn.tv/

Here's some good video's I came across.

Tokyo Drift Drift Demo
http://hspn.tv/?videoid=48

Sema Coverage
http://www.hspn.tv/?do=showtag&tagid=51

D1 @ SEMA
http://www.hspn.tv/?videoid=10

Can I get some +1's?