Good book on the Sicilian Defense?

Hi everyone!  I hate playing e5 or d5 after white playes

1. e4.  I don't feal comfertable with any other opening against e4 exept for f5. 

I want to buy a good book on the Sicilian Defense but I don't know about any good one.  Only ones that can be bought at Barns & Nobles, Amazon.com or any other easy access book store, online or physical. 

The Sicilian is just a defense that I am comfertable with.  One more thing, please don't suggest books that are over $40 or other openings that I should try as black.

Thank you!

you're probably going to want to decide on which type of sicilian you would prefere playing first.

I haven't read this one but it is by one of my favorite chess authors:  http://www.amazon.com/Winning-Sicilian-defense-complete-repertoire/dp/0875681980

I have this one and I like it, but I haven't had time to read it thoroughly:  http://www.amazon.com/Experts-vs-Sicilian-Jacob-Aagaard/dp/9197524468