The cons to a high end point and shoot are shutter lag, response, AF speed, image quality, and lack of ability to expand. The cons of a DSLR are price and size.
If your second-guessing your purchase review your return policy. Most places give you 14 days assuming everything is still mint and warranty reg. is untouched. Making mistakes is inevitable, how you handle them is controllable.
The shot of the car has no place in a portfolio. You suck for putting that one in. JK
All the shots are pretty sweet with some nitpicking on a few.
I'm not feeling the selective color on the cat. Maybe it has an emerald eye, but it seems unnatural.
I agree with maximumsushi about the portrait...
I'm assuming you mean 55-200. There really isn't a right decision given your parameters. Your decision should be based on the physicality of the camera and not how it looks on paper. The only right thing to have done is go to a store(non-big box) and try them both.
Enjoy your new setup.
Canon currently has an 800mm.
Ever been to an NBA game? Most of the lenses you see are 70-200 with some 300 and 400's as well as some wide zooms and fisheye's. Also included with most NFL shooters is the 70-200. Whenever something is happening right in front of them that's what they use. It's...
Photographic intentions and budget would aid this thread.
As for the banter about Nikon owning the entry-level world and Canon owning the pro you guys are a little off. There is no doubt that Canon has the sub-$1000 market. Compare the two most recent additions to both Nikon and Canon. XSi has...
I've never used a tripod for a sequence and gotten a few good ones. CS3 helps panned sequences quite a bit like this one which was 8500x3300 pixels in dimension when completed.