I have the Logitech Marble which is a three-button optical trackball and it 
works very well...

To: port-Mac68k @ netbsd.org @ INTERNET
cc:  (bcc: Derrick Hutchinson)
From: Tore.Halset @ idt.ntnu.no (Tore Halset) @ INTERNET
Date: 11/10/96 11:13:00 PM
Subject: which mouse


Hello.

This is an old question, but I have never seen a clear answer.. I want a
3-button mouse for use under MacOS, A/UX and NetBSD/Mac68k.  Anyone have a
list of working mice? 

 - Tore.