from slickdeals.net
Dell Business has the Dimension 4700 2.8GHz PCI-E Desktop w/ 19" LCD Monitor for $549 after $150 rebate + tax. Upgrade to 3.0GHz upgrade for $20 more.
Pentium 4 Processor 520 with HT Technology (2.80GHz, 800 FSB)
Microsoft Windows XP Home Edition
256MB DDR2 SDRAM at 400MHz (1x256M)
19 inch E193FP Analog LCD
Integrated Intel Graphics Media Accelerator
40GB Serial ATA Hard Drive (7200RPM)
Integrated Intel PRO 10/100 Ethernet
Single Drive: 48X CD-ROM Drive
Integrated 5.1 Channel Audio
WordPerfect, Powerful Word Processing
1 Year Basic Warranty
Mail- In Rebate $150 Mail In Rebate