Go for it. Lightening fast focus, 5 fps, better high iso iq over prior rebels. Discernible increase in iq over the t2i. I have both and have compared them side by side. Touch screen is awesome. Waiting for the next model is never a bad idea, but then you are always waiting for the next best thing instead of using the best.
I've just bought the T4i and honestly, wait! There are no image quality improvements at all, its worse even than the t2i and only as good as the 20d which came out 8 years ago! Any Nikon of the last 5 years will best this in terms of IQ.
If you don't believe me just look: http://www.dxomark.com/index.php/Cameras/Camera-Sensor-Ratings