OK, I remember back in the days of the original QUAKE, skins for game models were sometimes made by using another artist's color Swatch set (made from sampling the entire color range from an individual image), usually from a tiny Paul Steed 210x210 texture sheet. Painter (which I only used for a couple of days... compared to Photoshop, which I've used for 7+years!!) was incredibly easy. Just pull up an image, select "New Color Set from Image" in Color Sets and walla! An entire set of colors sampled from an image!

If anyone knows how to do this in photoshop, I will be quite grateful. I've searched high and low on google and many forums and can't find diddly-squat.
Maybe I'm putting in the wrong words... Color set , swatch set , extract image color range , etc...