Adorama offers the HP TouchSmart 320-1030 AMD 2.7GHz All-in-One 20" Desktop PC
, model no. QP788AA#ABA, for $519.99
with free shipping
. That's the lowest total price we could find by $57. (For further comparison, we saw a refurb for $489 shipped in July.) It features an AMD A4-3400 2.7GHz dual-core processor, built-in 20" 1600x900 wide touchscreen LCD, 4GB RAM, 1TB 7200 rpm hard drive, DVD burner, 802.11n wireless, Gigabit Ethernet, webcam, and Windows 7 Home Premium 64-bit.