http://www.weirdstuff.com/ has lots of stuff. Really cool place in Silicon Valley. I wanna go with you guys!

http://urbanore.citysearch.com/ has lots of old donated stuff... they had some oscilliscopes and such last time i was there, but i would imagine it's pretty hit or miss if any of it actually works.

Too bad you aren't going to Chicago:
http://www.sciplus.com/
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|| loren ||