I bought an old Phase Linear amp on Audiogon, still in repair shop but I knew it would be a project. I think that the general quality of audiogon stuff is better, but you can get better prices in general on ebay, but you risk repair bills. What I actually ended up doing was buying mostly new stuff, just kept an eye out for good deals on the web. You can actually get some good prices by calling audio shops up and haggling, there is no reason to pay full retail in high end audio equipment, you just gotta know what you are looking for (probably applies to most things in life

).
As for the bike, I am looking for a M/L Yo, vintage not that big a deal, and I am willing to start with just a frame, actually I would perfer to build it from the ground up. For the time, I am happy to continue to ride my F/S off road.