definitely canon if you're into sports photography. anyway, canon is the clear winner between the two. better built quality, twice the FPS, more lens to choose from, the ability to take full control of it via a pc and etc. i cant see any reason why you would not choose the 40d over e-510.

lens IS is always better than sensor IS. cos the IS is optimized for that particular focal length whereas sensor IS don't work well when using longer focal lengths. furthermore, with the lens IS, you can see the IS working tru the viewfinder thus having a better chance to compose a good pic.

i dont think that the weight would be much of a factor as you'd definitely get used to it as you would have a lot of bragging rights lugging it around. (its a 40D! not a D40!)

only choose the e-510 if you are traveling round the world in 80 days or have tons of OM lenses (with an adapter too).

This post has been edited by anthrax33: Nov 15 2007, 07:03 AM