iMac G4 800 / Superdrive (512MB)
Harman Kardon Pro Speakers and iSub (which I stopped using, due to buggy design)
Airport Rev B. (non-extreme, white housing)
15GB iPod (new design)
Here's mine, my work one first.
733 Mhz G4 Quicksilver, OS X 10.2.6, Hard Disks: 1 x 40 GB in 2 partitions, 1 x 9 GB (SCSI) in 2 partitions, 2 x 60 GB Wiebetech external Firewire/USB, 1.25 GB RAM, GeForce 2MX 32 MB, Miles Bluenote SCSI card, 17" Studio display, MS Intellimouse.
My home one (now don't laugh... OK you can), Powercentre 150 Mhz, 1 x 1.5 GB HDD 1 x 500 MB HDD, 96 MB RAM, Mac OS 9.1, twin USB card.