The power supply's are still working, not sure about the hdd, floppies or anything else.. I do have a working (if I can find the power supply/ video breakout) a500. Again, if anyone feels like posting some info on how I might go reviving these beasties I'd be happy to try it out. 
-J
What a treasure. Lucky guy.
Best course in dealing with old Ami's that have been lying around, is strip it to the bare motherboard, give it a cleaning, make sure that all socketed chips get pushed down firmly, and slowly add parts as you go. Its pretty likely that the harddrive is dead after all this time. Be sure that if there was a blue barrel type battery, that it hasn't leaked and spilled acid on the motherboard. If there is a battery, remove it quick! Also, give a close examination to the capacitors to see if any have expired.
The database of Amiga equipment is at
http://www.amiga-hardware.com You should be able to identify everything you have there.
