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HP.com has the HP s3500t 2.6GHz 4GB 500GB Blu-Ray Desktop for $599.99 with free shipping.

Configure to reach $999:
* Genuine Windows Vista Home Premium with Service Pack 1 (64-bit) [+$0.00]
* Intel(R) Core(TM) 2 Duo processor E4700 (2.6GHz) [+$50.00]
* 4GB DDR2-800MHz dual channel SDRAM (2x2048) [+$100.00]
* 512MB NVIDIA GeForce 9500GS, DVI-I, HDMI, VGA adapter [+$90.00]
* Blu-ray DVD player & Lightscribe SuperMulti DVD burner [+$150.00]
* HP multimedia keyboard and HP optical mouse [+$10.00]

Use $400 off $999 coupon code DT1158.
Final Price for this deal: $999.99 - $400 = $599.99 + Free Shipping

Description:
* Genuine Windows Vista Home Premium with Service Pack 1 (64-bit)
* Intel(R) Core(TM) 2 Duo processor E4700 (2.6GHz)
* 4GB DDR2-800MHz dual channel SDRAM (2x2048)
* 512MB NVIDIA GeForce 9500GS, DVI-I, HDMI, VGA adapter
* FREE UPGRADE to 500GB 7200 rpm SATA 3Gb/s hard drive from 320GB
* No additional (Ethernet LAN port on system board)
* Blu-ray DVD player & Lightscribe SuperMulti DVD burner
* 15-in-1 memory card reader, 2 USB, headphone port
* No TV Tuner w/remote control
* None (Integrated 5.1 capable sound w/ front audio ports)
* Microsoft(R) Works 9.0
* No additional security software
* HP multimedia keyboard and HP optical mouse