What do I need to do to get my Chevy Cavalier fixed?

I have a 2003 chevy cavalier coupe and both of my power windows are not working as well as the speedometer and rpm nor do they light up. Also my power locks are not working. What kind of specialist do I need to see and what could be the cause of my problems?|||SOunds like you have a bad fuse somewhere, if everything went our at once.