Today's deals from DealNN include a variety of items from Mac Pros to headphones. Apple's online store currently has the refurbished Mac Pro with a 2.66GHz Intel Quad-Core Xeon processor, 3GB of RAM and a 640GB hard drive along with a 18x SuperDrive, and NVIDIA GeForce GT 120 graphics card. It was $2499, but has been cut by $350 to $2149.