Lower end DSLR's with cheaper lenses, maybe. But, there is absolutely no way that the UZI or 717 can take sports pictures similar to what can be captured with the Canon 1D, except if the 1D is in the hands of a weekend warrior who doesn't know how to use it.I can only see
marginal improvements when comparing DSLR sports images to those
from my UZI or 717.
8 fps, 21 image buffer, and instant autofocus==1D is the sports photo killer. The 1D is in a league by itself when it comes to sports pictures. Of course, you pay through the nose for it (well make that, you are going to pay through the nose, ears, eyes, and legs for it--$4K just for the body, and then add in a 300mm f2.8 IS lens and you are at about a cool $8,000). Of course that set-up would be phenomenal, even if you add a doubler to it (giving about 800mm of reach). I got to shoot a few photos with that exact set-up a few weeks ago--trust me, you get what you pay for in that set-up (but you do pay a lot).
--Mike