If you can afford it, go prosumer cam corder instead... the MKII and 7D are old tech by now, and their shortcomings are getting noticed. Thus is the game of the late arriver a hard one.
Rolling shutter, jello'ing and the lack of proper sound, makes for nothing more than a hobby camera, and as soon as clients learn that it was fun for a while with all that shallow depth of field crap, what they loose in return when buying projects from dslr videographers outweighs the fun side of it.
If you wanna stick with Canon... wait around for the october announcement and see if it at all competes with what Sony and Pana has put out. Canon still rules the still world imo, but in the video world they are falling behind again.
Did I mention the crappy sound??? Sound is atleast 50% of any video / film project.