Gonna try this here...
I have Steam keys for Unreal Tournament III and most of the classic Half-Life games and expansions with the exception of Counter-Strike Condition Zero, plus a Starcraft key that activates on Battle.net.
I'd like to trade these for a couple of GOG games from the sales at the highest discount possible (so you don't spend much money.) I'd go first, and if the keys do not work, then you don't give me a thing.
I traded a bunch of Starcraft keys here years ago, and I've been a member of the forum for quite a while. I just don't post here much these days. :p
PM me if you're interested.