How much manual control does your camera have, Jim? You can likely make up for having too much light by closing the aperture (changing it upwards from f3.2 or wherever you are to the f7-8 neighborhood), and/or speeding up the shutter to 1/125 or better. The faster the shutter speed, the more likely you are to get a nice pic, generally.
The pic you posted is an *excellent* start. I think we can make that camera take perfectly decent coin shots.
Do you know what the closest Macro focusing distance is? Either way, for best lighting you're going to want 10-12" to the coin if possible, so you can tuck the lighting right up to the camera's lens - the closer to vertical you can make the light to the coin, the better you'll like it.
All of this is generalizing, though - what works for a nice BU Morgan does not work for a BU Lincoln, and none of that works for a circulated Large Cent. However, those details are for the future.
