Have mic, headphones, keyboard and mouse already.
Mainly needs to run D3, WoW 25m raiding, LoL and BL2 at max settings with 60 fps. Budget is $1500.
PCPartPicker part list / Price breakdown by merchant / Benchmarks
CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($189.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($32.56 @ Amazon)
Motherboard: ASRock Z77 Pro3 ATX LGA1155 Motherboard ($87.55 @ Newegg)
Memory: G.Skill Sniper 8GB (2 x 4GB) DDR3-1600 Memory ($43.98 @ Outlet PC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($69.98 @ Outlet PC)
Storage: Samsung 840 Series 250GB 2.5" Solid State Disk ($166.99 @ Adorama)
Video Card: Asus GeForce GTX 660 Ti 2GB Video Card ($273.98 @ SuperBiiz)
Case: Cooler Master Elite 430 ATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: Antec Neo Eco 520W 80 PLUS Certified ATX12V / EPS12V Power Supply ($39.99 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($16.98 @ Outlet PC)
Monitor: ViewSonic VX2450wm-LED 23.6" Monitor ($179.99 @ Newegg)
Operating System: Microsoft Windows 8 (OEM) (64-bit) ($89.98 @ Outlet PC)
Other: SSD Adapter ($4.99)
Total: $1236.95
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-02-04 02:33 EST-0500)
Thanks!