TiBook, my first Mac - Got it in Novemebr of '02 - when I joined here.
MDD Dual G4 Powermac - Logic board died, no Applecare, sold it for parts.
Dual G5 Powermac - Awesome computer, used it until December of last year.
Now:
Mac Pro 2x2.8 Harpertown w/2 23" ACD's.
15" Macbook Pro, 2.4 Penryn.
Not Macs, but what the hell. Currently in my office/house:
iPhone - non 3G 8 Gigger
iPod - 5th Gen 30 Gigger
AppleTV
Airport Express (2)