Both running RH 7.2:

Home - P2-450, 128 MB RAM, 4 GB HD,10/100 Enet, headless (used as a server)

Work - Dell OptiPlex, P3-800, 128 MB RAM, 8 GB HD, 16 MB VRAM, 10/100 Enet, replaces a Windows 95 box as my office desktop. (This term, however, it's being pressed into service as an instructor machine for one of my classes due to a shortage of PCs. I'm teaching UNIX sysadmin using RH 7.2)

In case it counts, both of my other boxen (2x500 G4 tower, TiBook) are running Mac OS X 10.1.3 full-time, so I guess that's two votes for Darwin/FreeBSD.