Sonic Reality studio (makers of samples and VST/VSTi's) gives a video tour of their collection of vintage keyboards (modular synths, clavs, e-piano's, organs, et al), mostly from the 1970's era and thereabouts, as well as some modern ones. They'll play a few familiar riffs and sequences from famous bands/tunes, to explain their origins. A Haken Continuum is also discussed a little, something I wanted to get back when it came out ~5 years ago, although they don't power it up. Anyway, if you're a synth geek like me, then you'll probably want to watch. Brought to you by Keyboard Mag (a fine magazine I've been reading since the mid 1980's).
http://www.keyboardmag.com/article/vintage-synth-geekfest/November-2009/103381
http://www.keyboardmag.com/article/vintage-synth-geekfest/November-2009/103381