Just bought a 1D. I had a 10D and 20D. Bought the 1D for shooting football and soccer this fall. Great thread on the 1D. Thanks to all who have given advice. This camera seems to be a different beast than either my 10D or 20D. I hope I an live with the fewerpixel count. I guess you just have to frame it better with less cropping.
I got my 1D last Friday so I am also here to say thanks for all the advice. I never used raw on my 300d because it was just so slow to clear the buffer. Now I've got raw+jpeg and really only use the jpegs to review before I open photoshop. I had no idea that raw was so much better! I had planned to wait for whatever was new in September but decided that the price on a 1D wouldn't drop that fast over the next year but the new camera would probably be $500 less by next summer.