I think either the Pioneer Elite VSX-33 or the Yamaha Aventage RX-A1000 would be a great receiver to have. I would probably go with the Yamaha if they were at the same price, as I am used to having Yamaha receivers and I like the idea of having HD radio. It also has 2 more HDMI inputs, though the Pioneer may have enough (right now, I am using 4 HDMI sources, so either would work in my case, but the future may involve more HDMI sources).
I would not recommend spending any more on the receiver, unless you need some feature not found on one of those models. If you want your money to give you a real audible improvement, spend it on better speakers (including subwoofers), not on a better receiver than one of those.