Gary Katz devotes his time to trim and finish carpentry and architectural millwork. His name may be familiar as the author of Finish Carpentry and The Doorhanger's Handbook; his website has a number of articles on trim techniques, with lots of good info on mouldings, columns and other detail work.

He also has a terrific and easy-to-follow tutorial on how to build this very attractive and detailed mantelpiece, with cloud lifts and inlaid panels strongly influenced by Greene & Greene. The final result is shown above, but if you have some interest in his technique and the process of building one like it yourself, you'll have to check out the drawings and step-by-step instructions, all documented with photographs.