OK I had to so some thinking to remember all this (the memory starts fading after 40)

Speakers:
Late 70's - Realisitic Quadrophonic setup (hand me down from my Dad)
Early 80's - some angular generic speakers bought at Pacific Stereo (first system I bought with my own money)
Late 80's - Klipsch Heresy II's (x4) still had the quadrophonic bug
Late 80's- Klipsch center channel (finally got a surround sound decoder)
Early 90's - Energy Connoisseur C-6
Mid 90's - NHT VS-2 (x5) First true HT system
Late 90's - M&K S-125s and Infinity (powered monitors (rears) and quadropoles (side surrounds)) (7.1 system) (tried something new, went back to the NHTs)
2000 - moved into a new house and built a dedicated HT in the basement
2000 - Energy Take 5 system (master bedrooms need surround sound too!)
2003 - Def Tech BP 2002TL, BP2004TL, CLR 2500, BP2X, UIW BP/A (new HT system) and Magnepan MMGs (dedicated stereo system)
2004 - Energy AC-300 (x5) (living room surround system)
2007 - Athena system (my oldest son wanted an HT system)
2007 - Mission M31s, M70 and M7c1i (new bedroom system)
2007 - B&W 604 towers and center channel (inherited)
Subwoofers:
Mid 90's - Velodyne 1012x
Mid 90's - BIC 100 watt 10"
Late 90's - M&K MX125 Mk II
2000 - Energy 8" (part of the Take 5 system)
2002 - HSU TN 1225HO
2003 - SVS 16-46
2007 - Velodyne F1800X/R (inherited)