Main box, backup machine (P4), Mum's computer, Mac-In-The-Box, sometimes-working DEC dual-P2 server, firewall-in-progress (PPro, should be done tomorrow), Gateway P2-400 (presently jobless), Athlon system (1 GHz just lost its motherboard; got a few Athlon XP systems, all dysfunctional, that I can/should consolidate into one in under half an hour). I've also got another Athlon that's a hard drive short of running (is that nine?)
Eight or nine, then, four of which get used regularly.
EDIT: Oh, I didn't count my Compaq laptop (which worked until the internal power board died) or the Dell laptop I may/may not be acquiring shortly. (Don't want to jinx myself there.)
EDIT II: Speaking of Athlon systems... this is post #462! Hah!