Bepster: I like the tap functions. That video really helps understand the advantages. Small, but on CAD / PS / etc. every little bit helps. Multiple by 8 hours.
I forced all my employees to use 3D connexion for that reason. I am still shocked that a few stopped using it after a week. I am almost unable to use CAD without a 3D mouse now.
Mrog: Did you know that all other animals seem to be 50/50 righty/lefty. Only humans seem to naturally balance out predominately right handed. Possibly because of the keyboard and mouse manufacturers hehe:)