MacMall offers the Apple Mac mini Intel Core i7 2.3GHz Desktop
, model no. MC408LL/A, for $894
with free shipping
. (It's the first choice on the second row) That's $5 under Apple's price and the lowest total price we could find. Features include an Intel i7-2820QM 2.3GHz Sandy Bridge quad-core processor, 8GB RAM, 1TB hard drive, 802.11n wireless, Bluetooth, Gigabit Ethernet, Thunderbolt port, and OS X 10.8 Mountain Lion. Note that an optical drive is not included.
Update: Body price corrected.