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Dell.com has the Dell Studio Hybrid 1.86GHz, 1GB, 160GB, for $399.20.
Use 20% off code QLT96K?4K445DX [Exp. 10/01/08]
Final Price for this deal: $499 - 20% = $399.20 + $35 shipping

Description:
* Slate
* Intel® Pentium™ Dual Core T2390 (1.86GHz/533Mhz FSB/1MB cache)
* Genuine Windows Vista® Home Basic Service Pack 1
* No Monitor (System includes DVI and HDMI ports. VGA is not supported)
* 1GB Shared DDR2 at 667MHz (1 DIMM)
* 160GB SATA Hard Drive (5400RPM)
* Slot Load CD / DVD Burner (Dual Layer DVD+/-RW Drive)
* Intel® Integrated Graphics Media Accelerator X3100
* Integrated Stereo Audio with 5.1ch digital output (S/P DIF)
* Dell USB Multimedia Keyboard & Optical Mouse
* No Modem Included