i would recomend that you get a vernier, its a must for case inspection. if you are going to use the safty powder scale, you will need a trickler, that scale is accurate but annoying. you will need a lee "case length guage" for the caliber you will load, an auto prime is handy but i dont use mine. if you do go that route, be sure to get the shell holders. to get started, you will need a drill or lee zip trim. and if you can buy patience, do so aswell.
so now ur shopping is done, be sure that you read your manual at the same time you are loading. i recommend that you read the procedures through fully once and then get to hands on with the book in your third hand. loading is pretty brand universal, meaning that if u load with rcbs, hornady, lee or whatever it is pretty much the same. however i can help you with any lee specific stuff, and in general. pm me if you would like.
good luck. remember, take your time.