I recommend the Wheel of Time series, by Robert Jordan. 11 books in the series (one more to be released) the shortest book is around 600 pages, the longest over 1000. I enjoyed it so much that when I had finished the 11th book I went back to the first book and read the whole series again.
Also, I just bought David Edding's "pawn of prophecy" today, and I'm gonna read that. If I like it I'll buy more of his books.