Newegg offers the Lenovo ThinkCentre M73 Intel Haswell Core i5 2GHz Tiny Desktop PC, model no. 10AY008CUS, for $419.99. Coupon code "EMCEHGJ57" cuts it to $399.99. With free shipping, that's the lowest total price we could find by $42. It features an Intel Core i5-4590T 2GHz Haswell quad-core processor, 4GB RAM, 500GB 7200 rpm hard drive, Gigabit Ethernet, USB 3.0, and Windows 7 Professional 64-bit (via downgrade rights in Windows 8.1 Pro). Coupon ends March 31.