Thank you!
I had been trying to find out how much my items were worth before I posted the thread, but couldn't find anything, they don't even figure in the site's DB. :/ I have little experience in selling such stuff, I used to simply keep them myself or give them away as gifts. You wouldn't even imagine how many oversized, game-related T-shirts my not-gaming girlfriend wears as pyjamas.
Anyway, I'll do my best to act more like a "law-abiding citizen" (*) next time.
(*) Quite a good movie, huh?