Seems like a reasonable price for a Quad if anybody is interested
http://www.dell.com/us/en/home/desktops_great_deals/fs.aspx?refid=desktops_great_deals...77&lid=1222233
Inspiron 546
Q9750 processor
4GB Dual Channel DDR2 SDRAM3 at 800MHz- 4 DIMMs
500GB5 Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
Integrated ATI Radeon HD3200 Graphics
Vista Home Prem.
16X DVD Burner

$549 if Microsoft Windows® XP Professional SP3 (Vista 32-bit Business Downgrade to XP (English))

Since XP is an option then the drivers should be available from dell for XP if you already have a XP license.