Try
this one
Pentium® 4 Processor 630 with HT Technology (3GHz, 800FSB)
Microsoft® Windows® XP Home Edition
512MB Dual Channel DDR2 SDRAM at 533MHz - 2DIMMs
40GB Serial ATA Hard Drive (7200RPM) (but I would upgrade this)
48x CD-ROM Drive
20 inch UltraSharp™ 2005FPW Widescreen Digital Flat Panel
128MB PCI Express™ x16 (DVI/VGA/TV-out) ATI Radeon X300 SE HyperMemory
All the usual junk (keyboard, mouse)
$929 minus a $100 mail-in rebate
Add $50 for a wireless adapter
Or if you'd rather go cheap,
this system includes a 19" LCD and is only $429 after rebate.
Both are stock systems, so customize to your needs.