bluestar, welcome to reloadin. order you a Lee reloading manual (Modern Reloading 2nd edition) it is good to have 2-3 reloading handbooks for the reloading data. Here is a great website for lookin up some powders to use.
You will need a funnel, a powder trickler is nice to have but not a must,and a set of the Lee Breech Lock Quick Change Bushings so you can set up your dies and not have to reset them every time. As for the bullets get what ever weight you can find and want to shoot.