Get a rolling pin with ball bearing handles for smooth rolling. You'll also need to have a hardwood or even better - marble - surface at least 12" long to doing your rolling on. Never wash either the pin or the hardwood pastry board - you don't want them to wrap. Just wipe them clean with a dry cloth.
Can any good brand of chocolate be used for dipping strawberries and still set up hard when cool? If not, can anything be done to it or added to the melted chocolate to ensure it will set up hard to the touch?