We were weighing our options between the 7D and the 5D Mark II for the past month but hubby decided to get the former, mostly for its video capability features. When I look at the 400D beside the 7D, it seems like a toy dwarfed by the size of the latter. The buttons would also intimidate one who is used with lesser functions (read: me). Key features of this model: Canon 18-megapixel APS-C size CMOS image sensor full HD video capture @ 1920x1080 (720p and VGA sizes also available) Dual Digic 4 processors, EF/EFS lens mount 3.0-inch LCD with 920K pixels 8 frames per second burst mode completely redesigned AF system and viewfinder wireless flash control high ...