We just shot over 9,000 photos and 2 videos in 4 days with our 2 SONY SLT-A77s!
We just returned from a gig as official photographers of the Rock Legends Cruise. I shot about 5,000 photos with my A77 using my (favorite) MINOLTA 28-135MM 1:4-4.5 lens and my wife took about 4,000 photos using her SONY SLT-A77 using her favorite... the SONY 16-50MM 2.8 lens.
We shot about 75% of the indoor shots with no flash. You can read a review of the cameras performances and see the photos and videos under the RLC Cruise photo tab at http://www.abetterdj.net