Office hardware: Dual Nehalem Xeon 2.4Ghz with 12GB RAM and two RAID'ed Cheetah SAS drives, all in Supermicro chassis. make -j 16 all the way!
Travel hardware: ThinkPad T61
Software on both: 64-bit Debian unstable with xorg/sawfish wm (no Gnome or KDE), emacs, screen, g++, make, etc.