Ok I'm tired of the noisy images with my t3i. So I'm I've reasearched and still can't decide between the not yet released 6D or the less expensive 5DII. I'm happy with everything about the t3i except the noise in low light photos. I've seen comparisons but can't decide. So I'm hoping I can get help here to decide. I've been shooting sports but daughter is a Pom so that's really where I need to take photos. The sidelines are not as well lit as center field. I do a lot of cropping which enhances the noise in the photos. I'm shooting with a 70-200 f2.8 lens. My budget limits me to these 2 choices. And I want full frame. I also shoot photos of dance in a dark theater. Have got some great shots but can't stand the noise. Please help me make this decision.