As far as straight CP/M gear, I've got a Kaypro II missing a power supply,
and a C128. I may have a Rainbow sitting around, I don't remember.
As far as other gear:
Apple II+, IIgs, IIc, IIc+, Bell & Howell II, Laser 128, Mac 128, Mac 512,
Mac Plus, Mac SE, Mac SE/30, Mac II, Mac IIx, Mac IIfx, Quadra 700, Apple
Workgroup Server 95, Mac Portable, Atari 800, Atari 800xe, Atari ST 1040,
Amiga 500, Amiga 2000, C64, C128, VIC20, MicroVAX II, MicroVAX 3100,
DECTalker, DECStation 3100, DECStation 5000, VAXStation 4000, A few early
POWERStations, A few old Sparc 4's, IBM PC, IBM XT, IBM PCjr, PS/2 Model 55,
PS/2 Model 40, EDUSystem, PC-RT, Mattel Aquarius, Coleco Adam, SGI IRIS, SGI
Indy, Compaq Portable, Compaq Portable II,
Quadex Q500 typesetting mini, TI SilentWriter, TI 99/4, TI 99/4A, Tandy
CoCo 3, Tandy 100, Data General Nova 3, a few oddball terminals, a handful
of old HP and Sinclair calculators, and some other machines I can't remember
at the moment.