If you liked Harry Potter, try The Magicians trilogy by Lev Grossman. It's like Potter X College X C.S. Lewis!

I finished them in 2 days, and didn't feel like I had a choice, they're so entertaining.

Anyone else agree?

Edit: WARNING:
Apparently, these books ARE NOT like the Potter books.
At all.
Don't say the word "Potter" when simply trying to describe the series to someone; people around here will simply lose their minds.