I have more gaming friends from GameTZ than from any other site. I have more trades there. But then, I've been using GameTZ since they were "UGTZ" (used game trading zone) back in the 90's. I think GameTZ's owner Bill does a really good job with the technical details and making a site that is...
Wing Commander Kilrathi Saga:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=130218227688
See my other auctions for some vintage PC RPGs!
These auctions end Sunday May 4!