Hahahaha, I don't need a bobblehead.
About that recommendation...it's basically my system (or my wishlist). If you look around you'll find it plugged a lot. Here goes:
2 pr BIC DV62si bookshelves: $241.88 shipped from
Amazon
1 BIC DV62CLR Center: $104.99 shipped from
Amazon
Subwoofer: You already have that Klipsch one, but there are many others available. I would say save up for an upper-end Hsu or SVS so you really get a mega upgrade. Any of the subs from these places are great values for the money. I have a Hsu STF-1 on the way (a cute lil 8" bugger for my small room, and small budget).
Receiver: Pioneer VSX-1015TX $430 from J&R. It's out of stock right now, but if you call their toll free number, they will give you a better price than the $500 MSRP. This is good, because you should be able to go to your local Best Buy and make them price match.
I'm not sure what you already have for a DVD player, and your TV is freakin' sweet.
The only other investments would be some speaker cable (I recommend 12ga Belden from
Westlake), some video cables, some speaker stands, and a cool demo disc to show off your system's capabilities.