HP Core i7 desktop: $660 at HP.com
HP knocks $100 off the price of the Pavilion p6780t desktop and then you knock another $150 off by using coupon code DT6448 at checkout.
You get a quad-core 3.8GHz Intel Core i7 processor, six gigabytes of RAM, a one-terabyte hard drive, DVD burner, AMD Radeon HD 6450 graphics card and Window 7 Home Premium.