T4i or 7D
Philip Kendall wrote:
It does take an OK pics at 3200 ISO so it is nice but I did hear that T4i might do even better on high ISO settings.
Who told you that? The general consensus is that the imaging part of the T4i's sensor is unchanged from the T2i/T3i/60D/7D; Canon have possibly tweaked the JPEG engine, but that's not nearly as important.
FWIW the digital picture's ISO comparison crops between T4i and 7D show the T4i to have noticeably better sharpness than it, or any other APS-C camera they've made.