keyboards

Eh, they have built in sensitivity adjustment with Fn+n where n is keys 1-9. Though I go with 7-9 as once you get used to sensitivity, it's easy to control and much less hand stress.

I have found them to be as good as the best ThinkPad TrackPoints (some in the past have been terrible, but they've been back to good form last couple of ThinkPads I've had).