haven't read the whole thread here. This may have been covered in detail..
Use Magic lantern on my 550D (T2i). It is an awesome tool. Put the T2I on a tripod, set trap focus at the largest jump at esquirenen , equirenebt, horse events. Better than having a second shooter. The lowly rebel produces images that are absolutely stellar. Print the images as 13X19 all day and have never had a disappointed customer. Kinda hurts my feelings when the T2I all by itself produces better images than me with a 7D and 70-200 Tamron VC...There is no question that that the rebel line is very capable of making awesome images...