This deal has ended.
Update: the coupon has met it's redemption cap and is now expired! HP has their Pavilion s5250t Slimline Desktop on sale for $469.99 after a $150 instant discount, before stackable coupon code SVMY65441 (expiring 12/7) drops it further to only $446.49. It features a 2.6GHz Intel dual-core processor, 4GB of memory, 640GB hard drive (select the free upgrade), 16x DVD / CD burner, memory card reader, gigabit Ethernet, and Windows 7 Home Premium. Shipping is free with sales tax charged in most states.