I would suggest getting the 550D instead of the 600D if you decide to buy now. They're still floating around and they have almost identicle features for less (as long as you're not set on the flippy screen). 479.99 If you get it from the canon refurb store, which I would definately recommend. It's a great camera and if it's your first you will love it. I think the less you spend the first time around, the better, because if you really take to it, you'll be itching for something bigger and better in no time. Don't bother with the kit lens. Get the body only and a 50 f/1.8, or possible a 35 f/2(I love this lense on a T2i).
However, I would wait for the T4i anouncement to see if there's anything groundbreaking going on there first.