If it must be pre-built, $1050 custom build here:
http://www.cyberpowerpc.com/system/CyberPower_H67_Configurator/
Customized as such:
Case: NZXT M59 Gaming Mid-Tower Case with See-Thru Window [-7]
Extra Case Fan Upgrade: Default case fans
CPU: Intel? Core? i5-2500K 3.30 GHz 6M Intel Smart Cache LGA1155 (All Venom OC Certified) [+104]
Freebies: You choose...
Venom Boost Fast And Efficient Factory Overclocking: No Overclocking
Cooling Fan: CoolerMaster Hyper TX3 Gaming CPU Cooling Fan [-6]
Motherboard: [CrossFireX] Asus P8P67 Intel P67 Chipset DDR3 ATX Mainboard w/ UEFI, DIGI+VRM, 7.1 HD Audio, BT GO!....
Memory: 4GB (2GBx2) DDR3/1333MHz Dual Channel Memory (Corsair or Major Brand)
Video Card: NVIDIA GeForce GTX 460 1GB 16X PCIe Video Card [+182] (Major Brand Powered by NVIDIA)
Multiple Video Card Settings: Non-SLI/Non-CrossFireX Mode Supports Multiple Monitors
Power Supply Upgrade: * 650 Watts - Corsair CMPSU-650TX 80 Plus Power Supply - Quad SLI Ready [+99]....IMPORTANT!!!
Hard Drive: 1TB SATA-III 6.0Gb/s 32MB Cache 7200RPM HDD [+23] (Single Hard Drive)
Optical Drive: 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive (BLACK COLOR)
Sound: HIGH DEFINITION ON-BOARD 7.1 AUDIO
Network: Onboard Gigabit LAN Network
Keyboard: Xtreme Gear (Black Color) Multimedia/Internet USB Keyboard
Mouse: XtremeGear Optical USB 3 Buttons Gaming Mouse
Flash Media Reader/Writer: None [-3]
USB Port: Built-in USB 2.0 Ports
Operating System: Microsoft? Windows? 7 Home Premium [+104] (64-bit Edition)
Everything else is set to NONE or default.
OR you can go with these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16883229221
http://www.newegg.com/Product/Product.aspx?Item=N82E16883227322
I'd go with the third choice. or this one:
http://www.newegg.com/Product/Product.aspx?Item=N82E16883227322
The third choice has a better better video card and more ram than the other 2. The 2nd choice isn't bad, but if 1,000 is your limit I'd go with the 2nd choice. But if you don't mind spending a little more than 1,000 go with the 3rd choice defiantly. I'd buy the third one myself if I had the money and didn't want to build the PC myself.