I challenge you to beat this build for less than $700
All parts are from TigerDirect. Note that I do not have an OS, keyboard, mouse, speakers, or monitor in the build price.
74.99 Raidmax case w/ 450 W Power Supply 20 rebate
207.99 Asus A8N SLI MB w/ AMD Athlon 64 3700+ CPU
39.99 Thermaltake Blue Orb CPU Cooler
129.99 1 GB Ultra PC3200 RAM 40 Rebate
109.99 Seagate 320GB SATA-300 Hard Drive
159.99 XFX GeForce 7600 GT 30 Rebate
54.99
Lite-on Super Allwrite SHM-165H6S / 16x8x16x DVD+RW / 16x6x16x DVD-RW / 5x DVD-RAM / 8x DVD+R DL / 4x DVD-R DL / 48x24x48x CD-RW / Black/Beige Faceplates / Internal / DVD Writer with LightScribe 15 Rebate
Total before shipping and rebates
777
-105 rebates
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672 after rebates.