yeah as said by vernong, you can save a bit by getting the Q6600 from frys, and its a good idea to get the newer 7200.11 drive. I thought the 7200.10 would be cheaper but apparently not.
As for a case I agree on the Lian Li, the PC7+ case is relatively inexpensive, extremely well built as all Lian Li cases are, professional looking, and has excellent cooling.