I definitely think anyone who is looking for something to read while suffering Tolkien-based withdrawal should try the Books of Pellinor. Written by a woman called Alison Croggon, they are beautiful, long and there are four of them!! Yippee :)
P.S. Would anyone like to share their views on Brisingr? I've been dying to talk about it with someone, but my friends aren't into books like these. Indulge me!