To quickly address a few comments:
balister, yes I've looked at Logitech's G line, I even mentioned the G15 in the original post. Their web site does not list a G10 but does list a G11, which is still a bit too large and most problematic for me in particular, is USB -only. In that respect refer to my original post and what I'm about to mention to Lowsky.
I realize, but they also come with a USB to PS/2 adapter which I didn't find any trouble with (I have a G15 and I've tried it both with USB and with PS/2 adapter and there was no difference).
Very interesting. I stand corrected, then. I was given different advice.
And does the LCD function via PS2 as well?
-Brad