Tearing out old carpet is a quick way to give your room a fresh new look and if you are fortunate enough to live in an older home you may find wood floors underneath. Here are some tutorials for doing the job yourself which will at least save in 1/2 the labor of having new carpet installed.
Please remember to recycle your carpet padding and carpet.
Tips On Removing Carpet and Tack Strip [Hardwood Installer]
Project Guide: Removing Carpet [Home Depot]