If you want to go retail, check out www.cyberpowerpc.com and build out a system. Here is a sample configuration for ~$2400

[*]*BASE_PRICE: [+825][*]CAS: NEW!!! CoolerMaster Cosmos S Gaming Full Tower 420W Case w/ See-Thru Side Panel [+168] (Original Color) [*]CASUPGRADE: 12in COLD CATHODE NEON LIGHT [+10] (BLUE COLOR)[*]CS_FAN: Extra Case Cooling Fan [+3] (3 x Fans [+6]) [*]CPU: (Quad-Core)Intel® Core™ 2 Quad Q6600 @ 2.4GHz 1066FSB 8MB L2 Cache 64-bit [*]CD: (Special Price) 20X DVD±R/±RW + CD-R/RW DRIVE DUAL LAYER (BLACK COLOR) [*]FLASHMEDIA: INTERNAL 12in1 Flash Media Reader/Writer (BLACK COLOR) [*]FAN: CoolerMaster Hyper TX2 Gaming CPU Cooling Fan (Extreme Silent Operation at only 22dBA + Overclock Proof) [+19] [*]HDD: Single Hard Drive (500GB SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD [+66]) [*]HDD2: 500GB SATA-II 3.0Gb/s 16MB Cache 7200RPM Hard Drive [+135] [*]KEYBOARD: Logitech G15 Gaming Keyboard [+80] [*]MOUSE: Logitech MX518 Gaming-Grade Optical Mouse [+36] [*]MONITOR: NONE[*]MONITOR2: NONE [*]MOTHERBOARD: Asus P5N-E nForce 650i SLI Chipset LGA775 FSB1333 DDR2 Mainboard [*]MEMORY: (Req.DDR2 MainBoard)4GB (2x2GB) PC6400 DDR2/800 Dual Channel Memory [+150] (Corsair XMS2 Xtreme Memory w/ Heat Spreader [+100]) [*]NETWORK: ONBOARD 10/100 NETWORK CARD [*]OS: Microsoft® Windows Vista™ Ultimate w/ Service Pack 1 [+209] (64-bit Edition [+19])
POWERSUPPLY: 600 Watts Power Supplies [+59] (CoolerMaster Unit 600 Watts eXtreme Power - SLI Supports) [*]RUSH: NO; READY TO SHIP IN 5~10 BUSINESS DAYS [*]SERVICE: STANDARD WARRANTY: 3-YEAR LIMITED WARRANTY PLUS 24/7 LIFE-TIME TECHNICAL SUPPORT [*]SOUND: Creative Labs SB Audigy SE [+30]
USB: Built-in USB 2.0 Ports [*]VIDEO: NVIDIA GeForce 8800 GTS 512MB 16X PCI Express [+269] (EVGA Powered by NVIDIA [+5]) [*]VIDEO2: NVIDIA GeForce 8800 GTS 512MB 16X PCI Express [+269] (EVGA Powered by NVIDIA [+5])

[*]PRICE: ( $2428 )