- the one on the left (an apple ADB mouse II) I use with my powerbook 1400c
- the one on the right (an apple mighty mouse) I use primarily with my imac g4 (huh, guess I'd never posted a pic of it here), but it's also been my generic USB mouse
- the middle one (a microsoft wheel mouse optical) I've only got recently, but it's probably going to take over my generic USB mouse role. it's also from the transitionary period where you can plug in a passive adapter and it does ps/2
most of the time, however, I just use the trackpad that can be seen under the mice in the picture