Glen Cook, the original three or four Black Company books. There were a ton more, some not bad books, but the franchise got worn out. Brandon Sanderson has invented a new "magic" in Mystborn. The first book was fantastic IMO. It has been a long time since a new type of "magic" has been introduced. The second book it out, but I have yet to pick it up. This is sci-fi, but Dune. IMO, one of the ten greatest pieces of fiction ever written. Edit: Oh, +1 on the Dave Duncan books mentioned.