Hardware

Dell XPS, 200MHz MMX, 64MB RAM, 4GB hard disk

Matrox Millenium (version 1), 4MB graphics card (no HW accel)

Three-button mouse (very handy)

Software

OpenInventor v2.4.1: http://www.tgs.com/

Mesa 2.3: http://www.ssec.wisc.edu/~brianp/Mesa.html
(v2.6 and up are much faster)

InfoMagic Linux Developer's Resource Jan '98: Slackware Linux, v3.4:
http://www.infomagic.com/

InfoMagic Linux Developer's Resource Aug '97: Metro-X Server from Metro Link (curiously, this version is much quicker than the current version on my hardware)

MooTiff v2.0.1: Motif from InfoMagic