Ebay. Hey, if it will help, you can by the SL-Q2 or SL-Q3 an have it and the cartridge directly shipped to me. I will install the cartridge, etc.; and ship it to you. All you will have to do is slip the platter on (it just sits right down into the spindle), put a record on and press 'ON'.
I'll charge you $25 flat + actual shipping.
If interested, I'll specify an eBay auction that appears to have a mint quality unit, and I'll give you text to instruct the seller to pack the unit safely for shipping. Most sellers do not know how to safely pack a table for shipping, and many get damaged as a result. However, if you instruct a seller as a condition of purchase to pack as you instruct, the table will be fine. This is what I have done many times in the past and have not had a problem.
A SL-Q2 or Q3 + Denon cartridge + shipping + $25 labor will come to a grand total of about $325-$400.
NOTICE: Here is one being sold as new-like condition with original packaging:
http://cgi.ebay.com/Technics-SL-Q3-Direct-Drive-Automatic-Turntable-System_W0QQitemZ360244478742QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item53e03e8316
-Chris