If you want to think like Iron man and perform magic like Dr Strange. Get yourself a self introspection or an internal drive that can handle it all!! It's quite sufficient in allowing a lot of programs to be downloaded with grace. Ease yourself and get yourself the Seagate ST6000DM003 Barracuda 6TB 5400RPM SATA 6Gb/s 256MB Cache 3.5\" Internal Hard Drive
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This drive is perfect for my Unraid OS. Used it as a parity drive. Parity check on my setup result was, Finding 0 errors Duration: 15 hours, 37 minutes, 37 seconds. Average speed: 106.7 MB/sec. Would defiantly add more of the same disks in the future. Delivery was also fast and reliable from Wootware.