I am upgrading from 5.1 to 7.1 with a sony 910. I currently am using BA Micro 90's for my fronts, VR10 for my center, and VRS Pros for my rears. I was thinking about using the pros for the sides and getting something new for rears. Or possible moving the micro 90s to the rears and getting something new up front. I can't use anything very big since they are mounted above my projector screen. Any suggestions?