Dell.com offers the Dell Inspiron 530: Core 2 Quad 2.4GHz Desktop PC with 24" LCD for $699 aftert Coupon Code: CJ?Z2DQDSJ0L0N with Free Shipping
Specs:
-Intel Core 2 Quad Processor Q6600 (8MB L2 cache,2.4GHz,1066FSB)
-Genuine Windows Vista® Home Basic Service Pack 1
-24 inch E248WFP Entry Widescreen Digital Flat Panel Monitor
-1GB Dual Channel DDR2 SDRAM at 667MHz- 2DIMMs
-250GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
-16X DVD+/-RW Drive
-Integrated Intel Graphics Media Accelerator 3100
-Integrated 7.1 Channel Audio
-Dell USB Keyboard and Dell Premium Optical USB Mouse
-Dell 19 in 1 Media Card Reader

How to get this:
1. Click here
2. Choose Intel Core 2 Quad Processor Q6600 (8MB L2 cache,2.4GHz,1066FSB) [add $170]
3. Choose 24 inch E248WFP Entry Widescreen Digital Flat Panel Monitor [add $250]
4. Apply $300 off $999 coupon code: CJ?Z2DQDSJ0L0N
5. Subtotal: $999 - $300 = $699 with Free Shipping