Well, right now the biggest problem is trying to figure out whether or not I can include Windows 2000 Professional (aka 'workstation) in the build. Trying to design PC with three dedicated HDDs (one for XP Pro, one for Windows 2000, and other for trial of various Linux distros). I finally found hardware requirements for Linux, and XP Pro was easy, but Windows 2000 is a nerve-grind! Would like to limit motherboards to them with 'DualBIOS', but finding out which specific ones will work with Windows 2000 is the main problem now, and need to know this to decide whether or not I have to drop it from my build (i.e. if it requires such archaic hardware as to severely impact the other two OS). This is what caused me to drop Windows 98, Haiku, and others. Don't know if you can help with this or not.