Main box: (Arcueid)
AthlonXP 2500+ (Barton), 1GB DDR400 (Dual Channel), ASUS A7N8X-Deluxe, nVidia GeForceFX 5600 256MB, SoundBlaster Audigy2, 80+120GB Hard Drives, Gentoo Linux (2.6.x kernel.)
Windows/SELinux box: (Chise)
AthlonXP 2000+, 512MB DDR400, ASUS A7V600, 160GB Hard Drive, nVidia GeForceFX 5200, SB Live, Gentoo Linux Hardened (SELinux) and Win2K Pro. (SELinux is just to fuck around with. I've actually grown to hate the damn system.)
Serv0r: (Mahoro) (E.g: The box this site runs off of.)
Pentium-II 400MHz, 512MB PC-133, 60GB Hard Drive, Gentoo Linux (2.6.x kernel.)
And then there are a few other shit boxes I have lying around which I wont bother listing. (P-II 233MHz, Pentium 75MHz... and a 286.)