Wired News has an article up on their picks for the 20 Macs that mattered most in the last 20 years since the Mac came out.
I remember my friend had #6, a Quadra 700. That was my first exposure to the world of Macs. The first one I actually used that’s on the list was #9, the PowerMac 6100/60. Since then, I’ve worked with #s 10, 13, 14, 15, 16, 17 and currently own #19, the flat-panel iMac.