I am currently in the market to upgrade to some new equipment I'm looking for some opinions on which way to go. My current set-up is a T1i and I generally shoot with one of three lens, the 18-55 kit lens, 28-75 Tamron or my 18-270 Tamron lens. While I'm happy with the pictures I get I'm looking to upgrade and get a little more serious. I currently can't decide between apgrading to the Canon 7D with 28-135 kit lens or just a good lens for my T1i. I was thinking of the Canon 70-200 2.8 IS. I like to take pictures of my kids ballgames, some wildlife and general photos. I thought if I bought the 7D kit I would also buy a 1.4 for some addition reach. Thaughts pros and cons? Thanks in adavance.