2000 Ford Focus LX 2.0 engine

Can anyone tell me the procedure to change the drive belt and power steering pump? What tools may I need?

drive belt? as in serpintene belt. or timing belt? timing belt is easy a 14/15 mM wrench and a new belt,. uh. timing belt. dont to it yourself and a powersteering pump.. dunno went bad??

serpetine belt, my son took the car for an oil change at Midas and during the courtesy check they found the power steering pump is bad and leaking onto the alternator. we have the belt already and are getting a used pump from the junk yard ( any idea how much a new pump is?)