I'm looking for the best receiver for $400-600. Looking for a balance between music and home theater use. Hoping to get some features that will allow me to expand to DVD-Audio or SACD in the future (this is a nice to have vs. a must have). Would be coupling the receiver with Polk RM7200's (at least this is my plan right now). Am looking at the Denon-2803 and HK 525. Any advice? Any others to consider? Thanks!