I put it together and now it has sat (at work, running) unused for awhile.
Dell GX1:
1.4ghz/512KB Pentium III-S Tualatin @ 1050mhz (100mhz FSB limit) - Using a Slot1 to S370 adapter with an attached FC-PGA1 to FC-PGA2 adapter
128MB ECC PC100 RAM
10k RPM Raptor 18GB SCSI HDD
DL DVD+R R/W Burner
Adaptec 2940-UW SCSI PCI Controller
Onboard ATI Rage Pro Turbo AGP Video Card
Onboard 3Com 3c905 ethernet
Onboard CS4236 Audio
Floppy Drive
BIOS is at revision A07. Any further updates renders the system unusable because of the CPU not being recognized.
Has one free PCI slot.
Currently running a customized BeOS distro a friend made that I updated a tad. Uses BeOS R5 PE with the Zeta kernel, drivers, BONE files, and what not with a bunch of updated components from Haiku. I have installed OpenTrack.NewFS, as well.
The system is pretty much rock solid. Whenever I had money, I was going to max it out at 768MB of ECC PC100. Probably the best BeOS machine I've owned. Pretty much all that hardware should work with OPENSTEP as well. I had OS4.2 installed with everything but the sound and NIC working. I hadn't spent much time on it though.
I'll supply it with a power cord, IBM Model M keyboard, and a PS/2 Logitech IR mouse.
Just message me if interested. The machine is pretty small.