Speaker suggestions
Check out the new SVS 5.1 speaker system for about $900. Should be great for movies.
If you want to max out your budget, consider the Axiom Audio M22ti fronts, VP100 Center, and QS8 Surrounds. Add a 10" sub from SVS or HSU. This setup should be great for music and movies.
If you want to blast R&B party music, then look at floorstander's for the mains.