CORSAIR Vengeance 8GB (2 X 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C9B
Seagate Barracuda ST31000524AS 1TB 7200 RPM SATA 6.0Gb/S 3.5" Internal Hard Drive -Bare Drive
All told it comes to 691.99 (which from what I've seen is a decent deal).
One of my concerns: Is the 500W Power Supply going to be sufficient? Would there be any problem with using my 42 inch LG TV as a monitor via an HDMI connection?
I agree on the i5-2400. At stock speed it is only 10% slower in most benchmarks. With the savings you could go up to a low end, but quality z68 motherboard from Gigabyte or ASUS. Most overclockers like the z68, but it has other desirable features as well.
That 500w PSU will be plenty unless you plan on adding a second card later. As is, the whole system will be more than enough for WOW.
------------------------------The power supply is the most important component in any computer. Without a good quality one, you usually wind up with a really expensive door stop. Reply to tlmck
Pretty good build for the money. I like kinggraves' suggetion and I'd go 1up.
Get a i5 2400. It costs ~$25 less. And the performance impact is minimal (almost nonexistent tbh). Use that to bump up to a GTX560Ti. You can find good deals for ~$210-220. The performance difference will be noticeably higher at 1080p.
The PSU should have no problem running a GTX560Ti.