Cool! I didn't realise that it was possible to increase the value of the bump beyond 100 by typing a value instead - another great tip! (I assume this would be true for other parameters in the Materials lab as well) The texture I have in mind is quite 'blocky' with many areas of geometrically shaped colour on it. I'd like these to appear raised so, in this case, I guess using a greyscale image (from a channel perhaps?)  would achieve my objective.  I'll try out what you suggested with the Median filter too.  

On a related issue then, could I also make a terrain from the greyscale bumpmap and then apply my texture to the terrain? This would then achieve a real raising of the object itself as opposed to just the perception of a bumpy surface though using a bump map?So much to learn, so little time... :biggrin:

Cheers!