Dell Small Business offers the Dell Vostro 3905 AMD A4 3.8GHz Desktop PC for $329 with free shipping. That's $141 off and the lowest total price we could find. It features an AMD A4-7300 3.8GHz dual-core processor, 4GB RAM, 500GB 7200 rpm hard drive, DVD burner, Gigabit Ethernet, and Windows 8.1 64-bit.