Then the ASUS P5Q-VM LGA 775 Intel G45 at Newegg for $119 should do the trick.
ASUS P5Q-VM LGA 775 Intel G45 Micro ATX Intel Motherboard - Retail
Model #
5Q-VM Item #:N82E16813131345
Return Policy:Limited 30-Day Return Policy $118.99
Intel Core 2 Duo E8500 Wolfdale 3.16GHz LGA 775 65W Dual-Core Processor Model BX80570E8500 $187.99
Microsoft Windows Vista Home Premium SP1 64-bit English for System Builders 1pk DSP OEI DVD $99.99
OCZ GameXStream OCZ700GXSSLI 700W ATX12V SLI Certified CrossFire Ready Active PFC Power Supply Mail-in Rebate $149.99 -$60.00 Instant $89.99
GIGABYTE GV-R487-512H-B Radeon HD 4870 512MB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card Model #:GV-R487-512H-B $274.99 -$35.00 Instant $239.99
LG 22X DVD±R DVD Burner Black IDE Model GH22NP20 $20.99
Western Digital Caviar SE16 WD6400AAKS 640GB 7200 RPM SATA 3.0Gb/s Hard Drive Model #:WD6400AAKS $74.99 -$5.00 Instant $69.99
CORSAIR 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model TWIN2X4096-6400C5 $64.99 -$10.00 Instant $54.99
Subtotal: $882.92
Rebates = $110
Shipping $8.97
Final: $782.00