In that price range, I would go for:
Pioneer VSX-1015TX Receiver: $430 from
J&R (you have to call the toll free number)
BIC Venturi Speaker System from
X-10
V-1220 Subwoofer @ $190.99 shipped
DV-62CLR Center @ $104.49 shipped
2 pr. DV-62SI Bookshelves @ $124.49/pr shipped
Pioneer DV-578A-S from TigerDirect: $109.44 Shipped
In fact, that's a clone of what my system is going to look like, except I plan on grabbing a Cadence X-Sub (another great option). The only caveat is that the X-Sub is about $40 more than the BIC unit.
Obviously I'm biased here, as I've spent my money on these things, or plan on doing so, but at the same time, after all the looking I've done and considering, I ended up going with this stuff.
There are some other options on DVD players. If you can step up in price somewhat, you might want to check out NeuNeo or the Oppo that are talked about a lot here.