The easiest way to do this on most digital cameras is to see if it has night mode. My old cam corder even had that setting.
I use night mode on my Samsung Digimax A400. I will have to post some pics some time. I like to turn out the lights and outline as many things I have before I run out of time.
Outline the tv screen, draw something in it or whatever.
I once drew the top of a rose whit my 5mW red while a buddy drew the stem with my core. it turned out real nice but i dont have the image anymore.
I forgot to resize my image, just downlaod it and view it, it looks much better that way.