What's your hardware like?
I recently got a new one to replace my four-year-old Alienware thing (which I spent way too much money at the time that I got it, bless teenage jobs and tons of disposable income). I still have two 1920x1080 monitors (Dells) and a surround sound setup from Logitech from that, but otherwise:
- AMD FX-6100 (six-core processor) CPU
- Radeon HD 6950 2GB graphics card
- 8 GB DDR3 1333 RAM
And it's in a great Cooler Master case (the HAF 912) with a Cooler Master Hyper 212 EVO cooler on the CPU since the stock one for the FX-6100 was letting it overheat.
I spent about $750 on this new rig and it runs everything pretty well (I get 30 FPS almost solid on BF3 on Ultra and Skyrim gets a solid 40-45 on ultra settings with the HD textures).