This Desktop PC

Newegg.com has the Lenovo 3000 J110 Desktop Computer With Pentium Processor 3GHz, 1GB DDR2, 250GB, LightScribe DL DVD

Lenovo has the Lenovo ThinkCentre A61 Desktop, AMD Athlon 64 3800+ AM2 2.4GHz, 1GB DDR2, 80GB, DVD-ROM/CD-RW, Vista Home Basic, 19” LCD $459.00 Shipped. Enter “TCA61WL194″ in the “Enter eCode” field. During checkout, apply $355.99 off special coupon code “USPTCA61WL194″ on this System.

TigerDirect.com has the HP Dc5700 Desktop Computer With Pentium 915 2.8GHz, 1GB DDR2, 80GB, XP Professional for $549.99 + shipping = $580.74 Shipped.

Product description from TigerDirect.com:

This Product Has Limited Exchange Privileges.

Dell Home has the Dell Inspiron 530 Desktop, Pentium Dual Core 1.60GHz, 1GB DDR2, 250GB, 16x DL DVD

Dell Small Business has the Dell Vostro 200 Mini Tower, Intel Core 2 Duo 2.20GHz, 2GB DDR2, 80GB, 16x DL DVD

Vanns.com has the Sony VAIO LS30E All-In-One Desktop Pentium Dual-Core 1.73GHz, 2GB DDR2, 250GB, 8x DL DVD

Dell Small Business has the Dell Vostro 400 Mini Tower, Intel Core 2 Duo 2.20GHz, 2GB DDR2, 250GB, 16x DVD

Dell Home has the Inspiron 530N Desktop with No Monitor to drop the price to $329 with free shipping.
Pentium Dual Core 1.6GHz, 1GB Single DDR2, 250GB SATA, 48x CDRW/DVD
128MB GeForce 8300GS, 7.1 Audio, Dell KB/Mouse, Ubuntu OS

HP Home has the HP Pavilion Slimline S3200z Desktop, AMD Athlon 64 X2 Dual Core 4600+ 2.4GHz, 2GB DDR2, 250GB, LightScribe DL DVD

Dell home has the Dell Inspiron 530 Desktop, Core 2 Duo 2.20GHz, 2GB DDR2, 500GB, 16x DL DVD