My two main workhorses are Rhino and Modo. I also have Hex, Silo, and Carrara but those are my one-trick ponies. i will also buy Moi just for exporting Rhino models into Modo (unless McNeel announces n-gon export). At this point i see no other reason to buy anything else. I will consider upgrading to Carrara 6 if dynamics are included, unless of course Modo announces bones, IK, and dynamics before C6 release. But then again it won't rhyme with Rhino and Modo, so i might go into the image files and rename it Carraro
shorty