One that won't stress the graphics card when playing skyrim on ultra 
Intel Core i5-3350P 3.1GHz Quad-Core $179.99
Motherboard Biostar TZ77XE3 ATX LGA1155 $89.99
Memory Corsair XMS3 4GB (2 x 2GB) DDR3-1600 $35.99
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM Combo or $74.99
Video Card Asus GeForce GTX 660 2GB $193.98
Case Cougar SolutionAF-2 (Green/Black) ATX Mid Tower $44.99
Power Supply Apevia 500W ATX12V $49.19
Optical Drive Lite-On iHAS124-04 DVD/CD Writer Combo or $17.99
Operating System Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) $91.17
Keyboard Adesso AKB-131UB
That's my build just need the monitor under $100 that's good for gaming and not stressing my vCard

Intel Core i5-3350P 3.1GHz Quad-Core $179.99
Motherboard Biostar TZ77XE3 ATX LGA1155 $89.99
Memory Corsair XMS3 4GB (2 x 2GB) DDR3-1600 $35.99
Storage Western Digital Caviar Blue 1TB 3.5" 7200RPM Combo or $74.99
Video Card Asus GeForce GTX 660 2GB $193.98
Case Cougar SolutionAF-2 (Green/Black) ATX Mid Tower $44.99
Power Supply Apevia 500W ATX12V $49.19
Optical Drive Lite-On iHAS124-04 DVD/CD Writer Combo or $17.99
Operating System Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) $91.17
Keyboard Adesso AKB-131UB
That's my build just need the monitor under $100 that's good for gaming and not stressing my vCard