Second the vote for Amazon Used.
And take a look at Tower on line.
If you sign up as a registered user, they often send out special deals that are worth taking advantage of.
A couple of weeks ago they were having some good sales on some Jazz ztuff,then were offering a 3 day additional sale of 15% off for registered users, and then free shipping on top of that. And, if you bought enough, they upgraded the free shipping to 2 day FedEx.
Axioms; For when you've just Gotta have More Cowbell!
60s 150 350 8s 2is
RX-V2500 DVD-C750 2900