Hey, the Pizza thing goes for me too, provided you're not talking about anything specific to over 5.5 which is all I have (and, really, all I need) One note of major difference between Trick's technique and mine is that his works to totally change the colour scheme, while mine does it subtly. Before the Gradient Map tool you could get largely the same effect by a technique similar to mine above, except the difference is you would convert to Indexed Colour using a set number of colours -- say, 32. Then you would load up a colour table with that many colours arranged in the right order and all and replace the colour map, then continue on as before with my technique. The one I listed, however, takes advantage of the fact that Photoshop will try to dither a set colour map to match as closely as possible on conversion -- this makes the end result look very similar to the original within the realm of what colours are possible with the limited palette.