I've got my own fangame thing going too. Just I've been so depressed for years, and have not gotten much of anything done.

I was working on a JJ3D thing a couple years ago too, but I'm kinda afraid to do that since I want to do games professionally, and left the project. Ah, but my level design skills weren't as good back then either, so at least I've got more practice in nowdays.

I use 3D GameStudio, and I do reccommend it, as I find it rather easy to use, however 3D Games Design is lots of work... unless you are lazy, then you can just toss anything together, pop in a few premade models with predefined scripts, put jazz level textures on the walls, and Boom, you got a fan game. Not a good fan game, but its uhm... something... or rather.

I've got a few screenshots of most of the stuff I've done over the years since I got GameStudio (A5). None of which are of working games