I brought my Yamama VRX-595a to test a pair of Energy C8s. Great sound but detail wasn't quite there. Hooked them up to an Outlaw 1050 when we got back and wow, what a difference. For 5.1 and 6.1, I haven't heard a receiver that comes close to the Outlaw up to the $1000 range (tested Marantz, Onkyo, Denon, HK, Yamaha). Outlaw is $550 shipped, that gives you almost $2500 for speakers and sub. The Pioneer Elite is a good starting point if you insist on 7.1.
SVS is good choice. Hsu Research and Adire deserve a look too, guessing you'll spend no more than $700 on sub, that leaves $1800.
Personally, I don't even know if it's worth it to go 7.1, not much out there that uses the format. 6.1 is more than enough. Figure $900 for fronts, $500 for center, and $400 on your surrounds, that should do it. B&W and Paradigm are good to start with. I don't really like the new Energy C series, they're too bright although they mellow out somewhat after they're broken in, the old stuff was a lot smoother. I never liked the way Klipsch sounded either, too harsh for me.