I love this camera. I bought the 10d in 2003 and then bought the 30d this past May. So far, I've got about 7,000 frames on the 30d body and have been enjoying the upgrade. The price can always be less expensive, but with the performance levels increasing while the prices either stay the same or droping, I guess you can't complain too much.
The 30d has much better battery life than the 10d and the larger screen helps my tired old eyes. I do wish however that Canon would solve the sensor dust spot issue. I guess the new Rebel XTI will begin to address this problem. So, we'll have to see what comes of that.
All in all, I'm totally happy with the purchase and would gladly do it again.