Project in-progress ( w00t! a post... lol )
While I continue work on my posts inspired by PBC, I thought I'd throw you a bone as to what I'm up to in other projects.
I am making a map for a game called Half-Life, and specifically a mod ( short for modification ) named Natural Selection. For some screenshots, background, and user reviews on the map, go here.
Here is a screen shot of what it is like while mapping:
( had to make this pic into to link due to it's size )
In order to map, you draw boxes for everything you want. Once you have your box the way you like it, you can manipulate it a variety of ways ( make it do something, make it into a different shape, etc ). Once you have your map the way you like it, you compile it ( which optimizes it to run on the game ). Compiling takes me about 1 hour, if you're interested ( on a 2.6 GHZ CPU ).
If you have any questions about anything related to the above, please put it in the comments.