I don't think that the OP is going to almost triple his budget and a decent sounding 5.1 system can be had for two thousand dollars, how do I know? Because I have one! Bought the speakers and sub used and grabbed a last year model of my receiver at a big discount because it was being replaced by a newer model. Check craigslist for sub and there always seems to be a lot of home theater speakers on there as well.
Good Luck, TISH
Good Luck, TISH