the website I posted offers the Pio 812 for ~$210, quite a value in my opinion... Be careful with the 510, it's a little older model that lacks some features of the newer ones... not sure exactly what though, I'd have to look into further.
Also, I would check out harmanaudio.com for some good deals on refurb'ed H/K receivers if you prefer that over the Pioneer 812. I prefer the Pio because it offers more features, but the H/K should be a little better sound...
I would recommend the Pioneer 812 & the Pioneer 563 Dvd player (which also plays SACDs & DVDs) in that price range. You can get both of them from www.mwebinc.com for