HP Home & Home Office offers its HP 110 Pentium Dual-Core 2.5GHz Desktop PC, model no. J3X47AV#ABA_1, for $329.99 with free shipping. That's $70 off list and the lowest total price we could find for this desktop. It features an Intel Pentium Dual-Core G2020T 2.5GHz dual-core processor, 4GB RAM, 500GB 7200 rpm hard drive, DVD burner, 802.11n wireless, USB, media card reader, and Windows 7 Professional 64-Bit. Deal ends December 20.
Note: It's not guaranteed for delivery by Christmas.