This deal has ended.
Update: the coupon has met the redemption cap and is now expired. Still available, HP.com has their TouchSmart 600xt Desktop PC on sale for $1149.99 after entering $550 off coupon code DTTS34422. This has an integrated 23" 1080p touchscreen display, 2.2GHz Intel Core 2 Duo, 6GB of memory (select the free upgrade), 640GB hard drive (select the free upgrade), 1GB video card, DVD / CD burner, wireless networking, integrated speakers, media card reader, Windows 7, and more. Shipping is free. Tax is charged in most states.