Use Dell SB coupon code DELLDT579 during checkout. Dell has this Inspiron 3847 Desktop with Core i7 4790 processor, 16GB DDR3 memory, 2TB 7200 rpm hard drive and more for $82 after instant discount. Use Dell promo code to drop the price to $579 with free shipping. Comes with Windows 7 Professional and includes a free upgrade to Windows 8.1. Monitor sold separately.