I don't think this has been covered (just searched it).
Google Sketchup Pro 7 has an XSI export feature (File>Expert>3d Model), and this new trial version allows 8 hours total of usage, which can be split up into unlimited sessions. If you use the free Sketchup to make the models, and the trial to export them, I figure we can get a pretty big export number (assuming we export fast
I just wanted to give all of us Sketchupers the heads up.




