Re: Sadly only one upvote to give.
"The Git remembers drooling over a Silicon Graphics Indigo machine running Irix and some interesting mathematical/graphical software."
We used to use SGI with 3D graphics and a lot of backup horsepower (compute servers & Linux farms) for protein modeling etc - around ~~2003 we changed to Linux/Dual Xeons and saved a large amount of money on hardware - although the 3D graphics card and LC spectacles added a lot to the cost. Some experiments were done with porting some of our in-house software to Windows (W2000) but it almost always crashed. (We ran on SGI or Linux at ~100% CPU for 2-4 days or more so we gave it some stick. Once we had a 2048 core Linux farm it became a lot easier to do more speculative runs very rapidly )