Rhino 3D v4 enters Beta
I used Rhino 2 for a while and found it to be intuitive, powerful and probably the single most stable 3D app I've ever used. If any of you 3Ders feels the need for an upgrade of your modeling tools, one could do a lot worse. The cost involved is maybe a bit steep for a weekend hobbyist, but isn't outrageous if you can use it to turn a buck via design or illustration.
Rhino Gallery
Flamingo Raytrace/Radiosity plug-in Gallery