The whole 'Reverse Engineering the 6502' talk Michael Steil gave at CCC congress is on YouTube. I posted this earlier in a separate topic, but it didn't pick up.

Clickable links to the 6 parts:

http://www.youtube.com/watch?v=HW9AWBFH1sA

http://www.youtube.com/watch?v=bBE4KHKzhKc

http://www.youtube.com/watch?v=tRBo7O_blVo

http://www.youtube.com/watch?v=H_15RtVbqGU

http://www.youtube.com/watch?v=N9DYmlprCKA

http://www.youtube.com/watch?v=eZOUuqc4pk8