Mwave.com has the EMI ATX Barebone System: Dual Core 2.8GHz, 2GB RAM, Enlight EN-PA420505 ATX Mid-Tower Case for $249.99. Shipping is free. ("M" Club members only, free to join)
Buy.com has the CyberpowerPC Gamer Ultra A101 Desktop PC: AMD Dual Core 2.9GHz, 4GB RAM, 500GB Hard Drive, Windows 7 Premium for $503.99 - $10 off $200 Buy.com Coupon (Click Here to activate, new customer only) = $493.99. Shipping is free.
Ewiz.com has the Zotac Mag Mini Desktop PC: Atom 1.6GHz, 2GB RAM, 160GB HDD, Mini ITX Barebone System for $299.99 - $40 off Ewiz.com CouponDONUT2315 [Exp. 03/07] = $259.99 + free shipping.
Ewiz.com has the ASRock Netop ION 330Pro Desktop PC: Atom 1.6GHz, 2GB RAM, 320GB HDD for $399.99 - $15 off Ewiz.com CouponDONUT1815 [Exp. 03/07] = $384.99 + free shipping.
Buy.com has the Viewsonic VOT132 PC mini Desktop PC: Dual Core 1.6GHz, 2GB RAM, 320GB Hard Drive, Windows 7 Premium for $401.99 - $10 off $200 Buy.com Coupon (Click Here to activate, new customer only) = $391.99. Shipping is free.
Sony Style has the Sony VGC-JS110J/B 20.1" All-In-One Desktop: Dual Core 2.2GHz, 4GB RAM, 320GB Hard Drive, Vista Premium (Refurbished) for $799.99 - auto $170 off at checkout = $629.99 + free shipping.
Buy.com has the ViewSonic VPC-100 - All-In-One Desktop + 18.5" Monitor: Atom N270 1.6GHz, 1GB RAM, 160GB Hard Drive, Windows XP for $471.99 - $10 off $200 Buy.com Coupon (Click Here to activate, new customer only) = $461.99. Shipping is free.
Buy.com has the Veriton N260G-UA280C Nettop: Atom 1.66GHz, 2GB RAM, 160GB Hard Drive, Windows 7 Professional for $383.99 - $10 off $200 Buy.com Coupon (Click Here to activate, new customer only) = $373.99. Shipping is free.