I was going through some old pictures, and figured I might as well just start uploading my old stuff. Why wait? So, in the Quake section I've put up some sketches of maps, artifacts, etc. that I drew for the game.
I have several pages of notes that describe a game different from the Quake that you know. I'll put these up when I start the Quake game page so I can explain what I was thinking for that design.
I've also put up lots of other pictures in many other sections. The smugmug site is really great - you should try it out for your own collections. You can totally customize it however you like.