Lenovo H530 i7-4770 Desktop PC for $449.99 shipped after coupon code 64888.  Here is a screenshot for your reference.  It features an Intel 4th generation i7-4770 Haswell quad-core processor with 8 threads at 3.4GHz, 8GB DDR3 RAM, 1TB hard drive, wireless 802.11b/g/n, 7-in-1 media card reader, and Windows 8 (64-bit).  Most places have it for about $849.