The basic requirements are about the same for MediaLab. Almost any machine you can purchase now is going to have sufficient resources to run most MediaLab and DirectRT experiments. With DirectRT, our only strong recommendation is to get a nice dedicated graphics system (with its own dedicated memory) that is not simply a chip on the mother board. Also, when Windows Vista and Windows 7 came around we seemed to get reports of problems with a number of Dell Optiplex systems, and also with some machines using Radeon graphics cards. When people are having display trouble and I ask people about their hardware, in many cases, I hear "Dell Optiplex, Radeon HD graphics card". But then again, Version 2012 seems to be working nicely with even these systems now. We are always working on hardware compatibility--let us know if you run into any issues.