R.A. Salvatore is one of the best fantasy writers out there. His novels have consistantly made the New York Times bestseller lists. He has written many books set in the forgotton realms universe. His most popular character is Drizzt Do'Urden. I have just heard that he is going to write another book about Drizzt called The Silent Blade.

Books:

Drizzt Books The Cleric Quintet The Crimson Shadow

He has written more, including Spearwielder's Tale and Tarzan: The Epic Adventures, but I haven't read them. He has also started a new series (I hope) with The Demon Awakens. I hear it's really good.