RCBS makes a good set of dies, I have many of them. You do not have to have the same brand, so you can also look at Lyman and Forester, Forester being a bit more pricey. Personally, I don't like Lee die sets because I've had trouble with them not holding adjustments, but I know of people who swear by them, and they are cheaper. Lee die sets are the only ones that come with a shellholder, so if you get one of the others, you'll have to order the proper shell holder also, a couple bucks extra. Midway has all you need at good prices, and they have charts online for the shellholders. They will also help you if you call the 800 number.
A digital scale is a nice extra if you have the money for one. I never thought I needed one until my wife bought me one a few years ago. Now I don't know how I got along all these years without one. The price has come down a bit in the last couple years. Dillon and PACT are both good brands.