I guess I could add that to the stack of other things that could possible cause a dysfunction - like breathing unventilated solder fumes while chain smoking cigarettes.
Did you say SPOT or SHOT? If he has to stick me with a needle somewhere ESPECIALLY MY HANDS then no thanks. I can handle being burnt by soldering iron, occasionally drilling into my finger, and all the other hazards of whatever else I do - but when a doctor breaks out a needle and points it at me, I feel like I need to prepare for that with a pint of whiskey and a painkiller.
Anway. the proxxon machine looks neat. Its small enough and looks like it does the trick. looks like going for $500..... I'm in the middle of assembling something just like this, but it takes up alot more desk space.
For the shakey hands... I thought I remember seeing some jigs people used for placing smd parts on circuit boards, like arms with vacuume suction cups on it to pick up and hold the parts in place. I can't remember what it's called.