Well my rig won't be winning any best of or fastest rig awards, but it does get the job down. It was actually a pretty high end system when I first built it, but alas, it is getting rather long in the tooth.
CPU: AMD Phenom II 1090T OC to 3.8GHz
Mobo: MSI 990FXA-GD80
Ram: 8GB Patriot Extreme Performance Viper 3 Series
GPU: XFX DD R9 280X (the only thing that has been upgraded since the original build)
Case: SilverStone RV02B-W ATX Full Tower - the best case I have ever had!
PSU: Antec EarthWatts Series EA-750 Green 750W 80 Plus Bronze
Monitors: 27" Samsung SyncMaster P2770 (Primary) 17" HP L1710 (Secondary)
Mouse: Etekcity Scroll 6E 4000 DPI Wired USB Gaming Mouse
Gamepad: SteelSeries 9HD
Headset: Plantronics GameCom 780
Mic: Audio-Technica ATR2100-USB