Are you going to take his name? Or, do something ultra modern and combine your last names? With all the wedding planning, you probably haven't given much thought to the legal work that goes into changing a name. The link below will help you with the process.
KitBiz offers lots of different legal kits from Newlywed Name Change Kits for Bride and Groom to Prenuptial and Will kits. Each kit is aligned to the state you live in so that you are sure to fill out the right forms. In addition, it is probably better to have the kit ordered before you say, "I do".