On Sun, 03 Feb 2008 15:37:08 -0500 David Kramer <david@xxxxxxxxxxxxxx> wrote: > I haven't seen left-handed ones, but I've seen plenty of symmetrical > ones. Kensington sells a nice optical one with a ball on top and a > button on either side. I find that the "Expert Mouse" from Kensington is well worth the expense. Symmetrical, 4 buttons, a scroll ring and a really big trackball. It is vitally important to fixup your xorg.conf file to define one of the buttons as a drag lock button. I can't do dragging with a trackball unless I have drag-lock. Too much finger contortion or you have to get both hands into the act otherwise. Another hint: I find that the autoconfiguration tools for X on linux tend to fill in some specific protocol like Imps (or however it is spelled). That usually leaves only three buttons working. Setting the protocol to "Auto" makes all the buttons visible, then you can give them sensible mappings with xmodmap.