Well, after going to Medieval Times couple weeks ago and shooting at ISO 1600 and F/2.8 to get mu shutter speed remotely close to action shot numbers, I got frustrated and just bought a used Canon 40D from a a forum member here. I love my XSI but I do find high ISO noise very unforgiving. I tried to underexpose shots to get rid of motion blur - but the noise after correcting the exposure in Lightroom was way out of wack! So, I bit the bullet and went with Canon 40D - I hope the loss of 2 MP will not be noticeable. I am looking forward to ISO 3200 and 6.5 fps OOOPS - just noticed that I put 50D in title by mistake - no, I am not that rich - can moderators change the title please?