I am going to fill my MacPro 1,1 with 32GB of ram and crush big numbers as well as data, music production and video production (IN HD) and have four, 1TB hard drive's worth of storage before I begin plugging in two SSD's and ultimately move OS functions to the SSD's. Save the HDD's for the storage. And that's INSIDE of the box!!! Outside, is a whole other discussion, but I can get max done within the box before plugging into any array's. No, I can't go up to Maverick's on it, or even Mountain Lion, but I can safely get to Lion and everything I've Got works with Lion. So I'm set. Once Thunderbolt becomes mainstream the trash can edition may become some sort of collector's item or something.