US Appliance has made some nice price cuts on a few Samsung's this morning:
51D550 - Now $899 shipped
59D550 - Now $1549 shipped
64D8000 - Now $2999 shipped - great price on flagship plasma and probably worthy of its own SD thread.
For people unfamiliar with US Appliance, they offer free 30 day returns, 110% 30 day price match guarantee, and free white glove delivery. This is hard to beat.