To anyone who's on the fence about a 40D, let me help. Last night I went to the AST Dew Tour with Freestyle Motocross (FMX), Skate, BMX and Wakeboarding events. Just last month I traded up from a 10D and 1D (for walkaround and sports, respectively) to a 40D only. I also bought a 70-200 f2.8L (non-IS) to replace my f4L (non-IS).
The tracking of the 40D in AI servo mode is AMAZING! I nailed so many great shots because of the focus, the ability to record smoothly high ISO (most of my shots were ISO3200), and the high FPS (6.5 is close enough to 8fps for me - when comparing it to the 1D).
Anyone who is thinking of buying either the camera or the lens, do yourself a favor and do it. The worst part of the whole thing is that I took over 1850 photos in less than 6 hours, and now I have too many keepers!
