Thanks Mac.
Funnily enough, I've spent the last 30 mins or so looking at the Intuous3 A4...
The CAD version comes with a mouse-shaped "Lens cursor" - which is obviously good for CAD, but not ideal if you have RSI...
Hmm... It looks as if the Intuous3 A4 DTP version could be the trick, but cheap it ain't...
Is there an alternative to the lens cursor for CAD? I can see why you'd need it: it saves extra dimensioning operations over a mouse or pen, which is a bit ironic considering an RSI sufferer wants to keep ops to a minimum, but doesn't want something mouse-shaped...