www.blender.org  (does this still work? I have limited success...just look for Blender)
www.wings3d.com  (this does still work
Anim8tor (still at work, don't have that memorize)
Truespace (older versions are free)

that should keep 'em busy for awhile..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)