Sketchup is free!

[Chadwick]

http://sketchup.google.com/

[TomWaltz]

I'll be more excited when there's a Mac version, but that's pretty f#&%ing cool!

[Thomas Holm]

The mac version is coming soon. But you'll still need the Pro version (same price as before) if you're a professional:

• Print and export raster images at higher-than-screen resolution.
  Access to the following 3D export formats: DWG, DXF, 3DS, OBJ, XSI, VRML and FBX.
  Export animations and walkthroughs as MOV (Mac) or AVI (Windows) files.
  Use the Sandbox Tools (for organic modeling of terrain, etc) and the Film & Stage Tools (for pre-viz work).
  Have access to free email tech support for two years from purchase.

It's identical to the current Sketchup 5.0. And the Mac version is there too.

[stefan]

Not a small detail: the free version is not usable in a commercial situation. That would leave many on these forums out of it...