Update: $49 less! They just added free shipping on all notebooks, desktops, and servers!

Dell Business has this Dimension 2400 at $399. Select Free Upgrade 15" E151FP Flat Panel Display [+$100]. Total $499 - $50 rebate = $449 with free shipping.

Celeron 2.2GHz, 128MB DDR, Dell Keyboard/Mouse, XP Home
40GB Drive, 48x CDROM, Integrated AV, 10/100 Ethernet