Experience
Here’s a nice list of software that I know how to run. It’s good to have a list like this for a digital craftsman like myself.. i think.
Final Cut Pro, Avid, Motion, Sound Track, Pro Tools, Motion, Shake, Cinema 4D, Second Life, Compression, Epsiode Pro, Flash, Dreamweaver, Fireworks, Adobe Creative/Production Suite, + (all standard windows/apple apps) Windows 3.1 -> Vista, Windows Servers, Apple OSX, OSX Server, SANMP, XSAN, Linux, Darwin…. the list continues.