Thanks for the replies guys.
I guess I sould have been a little more descriptive, I meant to say what bulbs or light make your display look best... as in enhancing the color, not washing them out etc...
I'm leaning towards a warmer light color, but on the other hand I sometimes find a bulb that has a lot of yellow in it can make the room look dingy or dirty... if you know what I mean. Maybe I'm crazy!