What components are a good value in used market?

To answer Tweak1, I am always looking for good values in hifi - I set up systems for friends who do not want to pay the modern Hifi prices.

I was pleasantly surprised to find products like Old marantz 2270 receiver ($200), McIntosh 2105 amp ($500), parasound amps, and LiteOn Lvd 2002 (as a Cd player).

Thanks for all the posts - I will definitely take these advices and hunt them down.

Cheers...