Somewhat OT: Small LED light suggestions

[Travis Roy]

This is slightly related since most of us work on our own stuff, and a 
good light and something one needs now and then (I know Ben Scott has a 
few very blinding LED flashlights).

I was looking for suggestions for a decent LED light that's fairly small 
(but the smaller the better). I would prefer something that can do red 
and/or white light.

I did some poking around and there is a lot more then I expected so I 
thought I would check with you guys to see what you have all used.