i had to wait for a deploy process to finish, so i toyed around with google sketchup. it was kinda reminding me of a light and intuitive version of radiant. check it out:
the instructor is a good idea for beginners, maybe SD can implement that as well 
Seen it, done that. 
EB: Google 3D Sketchup…(make map idea-layouts extremely fast)
Carnage: exploring google sketchup as a mappers tool
It is a nice tool, but I haven’t used it since those two topics. (Of course, I haven’t mapped that often during this period, mostly I was coding)
