I've been working on a game (just a little indie adventure by myself) for the last year and eventually decided to go the Sketchup route to build the main setting for it. Thought maybe it'd be interesting to track the progress on here as I build it - any tips or suggestions would be welcome as I'm pretty new to the software!
There are a few sketches of how the rooms looked when I drew them in my sketchbook thread if you fancy seeing the sort of look I'm going for: http://conceptart.org/forums/showthread.php?t=128162
Some things, like making rooms on a 'grander' scale, are a lot easier with Sketchup but other aspects (like little details, figures, animals etc) are a heck of a lot harder...
Here's some of how it's looking at the moment.