If price is not a concern with the 3 camera mention, and the k-r also. I would go with the t2i. It just offers more in the long run with lenses, and gives you good HD for those time you want a video clip.
Super Frequent Flyer, no joke. Ex Patriot and loving it.
Canon Eos 60D, T1i/500D, Eos1, Eos 630, Olympus EPL-1, and a part time Pentax K-X shooter.