Lenovo IdeaCentre K330B 7747-1KU Desktop PC for $549.99.  Shipping is $14.80 for a total of $564.79 shipped.  Here is a screenshot for your reference.  It features an Intel Core i5-2310 processor at 2.9GHz with Turbo Boost, 6GB DDR3 RAM, 1TB hard drive, DVD±RW drive, Intel HD 2000 graphics, wireless 802.11b/g/n, Gigabit Ethernet, 16-in-1 media card [...]