Amazon.com : Lenovo ThinkCentre M73 10AY001YUS Tiny Desktop (2.90 GHz Intel Core i5-4570T Processor, 4GB DDR3, 500GB 7200RPM HDD, Windows 7 Profession

$549.49
Amazon.com : Lenovo ThinkCentre M73 10AY001YUS Tiny Desktop (2.90 GHz Intel Core i5-4570T Processor, 4GB DDR3, 500GB 7200RPM HDD, Windows 7 Professional) : Computers & Accessories