Processor: DualCore Intel Pentium E2200, 3200 MHz (11 x 291)
Motherboard: Abit IP35-E
RAM: 2 GB Crucial DDR2-800
Graphics card: NVIDIA GeForce 8800GT 512 MB
Case: Cooler Master CM 690
Power supply: Corsair VX 450W
Cooling: Tuniq Tower 120
It was a great little thing a few years ago but it's starting to show its age.
My question is, what parts, if any, should I upgrade (and to what?) if I want to be able to play upcoming games like Battlefield 3 and Elder Scrolls V: Skyrim on high settings on a 24" 1680x1050 monitor? I'd like to keep upgrade costs under $500 if possible.