Apple previewed its new Mac Pro at WDDC 2013 and priced it in October, and it’s now revealing it will finally go on sale tomorrow. The tiny desktop computer, that looks more R2-D2 than PC, will ship with the latest Intel Xeon E5 processors, up to 64GB of RAM, dual AMD FirePro graphics chips with up to 6GB of dedicated memory, and up to 1TB of PCI Express solid-state storage.