With the new Sony DSLRs (plus a mirrorless and camcorder) those in the market for a new video DSLR must be feeling a bit dizzy! These have really thrown things up in the air. So what video capable DSLR now suits your needs best? As it happens, the GH2 still has a big roll to play. I am ignoring the image quality gains from the Sony A77 and NEX-7 for…