Maybe recessed pocket lights in the ceiling above and a dimmer switch controler ... you may want to look at the lighting fixtures at your local Home Depot or Lowes for other ideas.

Here is a link to a picture of Andy Garcia's living room in Miami. He has a fireplace with 2 monkey sconces on either side:
http://sisalnet.com/mag/Andy%20Garcia%20NYTimes.htm
http://www.nytimes.com/2006/04/27/garden/27garcia.html?ex=1186632000&en=e88b84e0f6a142d9&ei=5070

The lighting site: www.sisalnet.com
Hope it helps you....David

Here is a link that might be useful: Fireplace sconces of famous people

A better link to "fireplace sconces of famous people." listed above

Here is a link that might be useful: fireplace sconces of famous people 2