HP Home & Home Office offers the HP Pavilion 20-f430z TouchSmart AMD 1.4GHz 20" Touchscreen All-in-One Desktop PC, model no. E7N89AV#ABA, for $549.99. Coupon code "DEALNEWS15HP" cuts it to $534.99. With $9.99 for shipping, that's $85 off list and the lowest total price we could find. (We saw a similar build for $32 more in August.) It features an AMD E1-2500 1.4GHz dual-core processor, 20" 1600x900 touchscreen LED-backlit LCD, 4GB RAM, 500GB 7200RPM hard drive, DVD burner, 802.11n wireless, Bluetooth, media card reader, USB 3.0, and Windows 8.1 64-bit. Deal ends February 1.