• A Blue and White G3/400 - my main design and Internet machine.
• A 7600 - the web server (running WebStar) this site and all my sites are served from, colocated at a nearby server farm.
• A Power Computing Power100 - I call it "the 8100" since the differences are so few between it and a stock 8100/100. My program testing, AppleScript debugging, and Newton transfer station (it has serial ports). Also my localtalk-ethernet bridge for printing from the G3. Now that I've got cable modem, the 8100's also my internet router, running IPNetRouter to share via a second nubus ethernet card (salvaged from one of the IIci's below). Quite the workhorse for a 5 year-old mac.
• An LCII - Still not certain the fate of this little bugger, but the form factor and $5 pricetag suckered me into buying it. Now that it has Ethernet (thanks to WeLoveMacs.com) it's useful as another mail / telnet / network monitoring station. I've put NetBSD on it, and it's not too shabby, even running X apps very slowly over the network.
• Two IIcis - With enough RAM and Nubus cards between them - including a rare Nubus Ethernet card, I will probably max one out and make it a mail server in the future. For the moment, they are highly effective dust traps.
• Two Mac SEs - each with a 20 meg hard drive and 800k floppy drives. Both also have PDS thin/thicknet ethernet cards, but I have only one transciever. One was keeping tabs on the network and my headless Linux box as a dedicated terminal, the other was connected via localtalk, running MacMinix. Currently, they are working hard as doorstops and keeping all the spare parts in one place.
• A Mac Plus - I keep it around just to fiddle with Hypercard 1.0 and format 800/400k floppies for the 512s.
• A 512ke - 128k ROMs and 800k floppy make it almost as useful as the Plus. I play games and keep my bedroom heated with this one.
• A 512k - with a gimpy 400k floppy drive and badly burned-in screen, not to mention a damaged case, this one's going to give its innards to a collector somewhere (let me know if you want a 512k motherboard or analog board) and its case is currently in the process of becoming an attractive enclosure for an array of SCSI hard drives, or else a piece of sculpture.

Pictures are coming soon. I swear.