While the basic controls are much the same as the trusty 30, there seems a hell of a lot more wee buttons on the back to play with (or, more often, to try not to press by accident). The 1.6x increase in effective focal length (because of the sensor being smaller than a frame of 35mm film) takes some getting used to, with my standard 50mm lens now a minor telephoto - great for portraits, but less useful for other subjects. The 19-35mm wide angle, on the other hand, now covers that mid-range, but loses the far wide angle that I like. Still, that's no surprise - while I'd have liked one of Canon's full-frame models, I couldn't really justify the extra cost. Physically, it's a lovely body - heavier and more solid that the film equivalent, and much more comfortable in my big hands than the cheaper 400D. My one complaint is the absence of eye control autofocus, one of my favourite features on the 30 - the different AF grid is easy enough to adapt to, but I do miss the eye control.
Anyway, here's a few of the first results (substantially reduced in size from the output images, of course).