Wow, this DELL OPTIPLEX 790 TW Desktop Computer, Intel Core I7-2600 up to 3.8G,16G DDR3,2Tis easily the best purchase I ever made.  It was refurbished be an authorized Microsoft team.  And with a 3 year warranty it still cost less then $275.  I has been two weeks now and it is so impressively fast.Came with a brand new keyboard, mouse, and cables.