manually focusing on my XSI is not the most accurate in the world. Manually focusing would be ideal on a 5d/1DSx.. The viewfinder is amazing and bright. I had no problems manually focusing on my EOS-3.
heh, I didn't even know about live view. Obviously I have never used it.
ugh. do NOT buy the 50/1.8 just because it's cheap. when buying prime lenses, buy based on focal length.