I realize I'm a bit late with my reply, but I've had similar discomfort with hitting the shift key all the time. Since buying a touchstream lp (http://www.fingerworks.com/) my pinkies have finally recovered from years of abuse. The integrated programmer's punctuation pad and customizability of the unit have drastically cut down the amount of reaching my hands have to do to reach those "rarely used" keys.
I actually bought it to aleviate wrist pain from using a standard mouse, and cuz it looked pretty damn sweet. At $300US, the price is kinda steep, but it's been totally worth it to me, especially since they keep coming out with firmware upgrades.
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I realize I'm a bit late with my reply, but I've had similar discomfort with hitting the shift key all the time. Since buying a touchstream lp (http://www.fingerworks.com/) my pinkies have finally recovered from years of abuse. The integrated programmer's punctuation pad and customizability of the unit have drastically cut down the amount of reaching my hands have to do to reach those "rarely used" keys.
I actually bought it to aleviate wrist pain from using a standard mouse, and cuz it looked pretty damn sweet. At $300US, the price is kinda steep, but it's been totally worth it to me, especially since they keep coming out with firmware upgrades.
P.S. Xwinder is totally sweet. Oh, and the gestures are badass, it's like all-in-one gestures (http://extensionroom.mozdev.org/list.php/Firefox/ all#aio) for every app, sorta.
I am not affiliated in any way with fingerworks, just a satisfied customer. Hope this helps.