I have a T33, a 5MP job. It takes good pictures in good light, but suffers a little in low light because of blur - but it's probably down to my shaky hands! The T10 has image stabilisation which is "Very effective image stabilization for steady photos even in limited lighting" according to a review site. I'm going to order a T50 very soon. It has image stabilisation and is 7MP and has a 3" touch screen. The menu system on the T33 (and probably the same with the T10) was a little bit of a chore. The T50 can also zoom when shooting video. As far as I am aware, it is the only one in the T-range that can (mt T33 couldn't, disappointingly).
If the T10 is anything like my T33 (which it should be, and better, as the T10 is a later model!) then it should prove a very good purchase. Check out Steve's Digicams for reviews and test shots.