@Sheiky: Portrait/landscape orientation ratio is about the same and I must say that I really love the battery grip on the 450D, but I think I could manage to live without if camera's grip feels good. At this moment, my pinky is just below the bottom of the camera and my index finger is a little bit cramped.
I usually like to shoot nice pictures during holiday, nature and portrait photography and sometimes family shots with a kid once in a while. Video function is nice and could come in handy, but for me certainly not the main reason I'd buy an DSLR
The main reason I like the 60D is grip size/build quality, but I like the specs of the 650D (DIGIC 5, image quality at high ISO). I don't really care much about the touchscreen. It's nice but no requirement for me. Was size the only reason for you to upgrade to the 50D? Are you happy with the decision? Do you miss your battery grip?