In reply to BedRock:
If you have EF lenses then a 2nd hand 5D2 or if you stretch your budget a 2nd hand 6D would be my recommendation.
If you have EF-S lenses then the 7D got terrific reviews until the 7D2 came out. Nicholas Livesey of this parish has put one to very good use.
However, if I was starting from scratch and was content with aps-c sensor size I'd go mirrorless. You could get a Fuji XE2 plus a lens on that budget (2nd hand) or maybe an XT10.
It's worth a trawl round the dp review, fred miranda and photo.net forums.