Here are the specials Dell listed in the flyer I got this week. When you go to the website you need to go to Small Business. I've purchased several computers and laptops and never had to provide an ID number.
VOSTRO 1000 for $449 - 512mb DDR2 SDRAM, 60 GB harddrive, CD-RW/DVD Combo Drive, 15.4" Widescreen XGA Display, Integrated ATI Radeon Xpress 1150. Use value code 65029-BQPCI4F for Windows XP or 65029-BQPCIVF for Vista.
VOSTRA 1500 for $549 - 1GB DDR2 SDRAM, 80 GB harddrive, CD-RW/DVD Combo Drive, 15.4" Widescreen XGA Display, Integrated Intel GMA X3100. Use value code 65029-BQPCK4F for Windows XP or 65029-BQPCKVF for Vista.