I bought and have been using that exact same kit. With all due respect to Steve, you don't necessarily need quite that much stuff to get started. The accessory kit would be nice, but you can get by with a powder trickler which means you measure each charge instead of throwing it through a powder measure, and you will soon need a case trimmer. I managed to reload my cases 1-3 times before I knuckled down and bought a case trimmer. As for dies, you can reload perfectly satisfactory ammunition with standard FL die sets, and it is possible to set them up to necksize only if you choose to do so. And like Steve said, don't forget the shell holders like I always do. Unfortunately, the cartridges you plan on loading for are different enough that you will need a different shell holder for each. Another little accesory that I find almost necessary are the little plastic shell boxes from MTM. They are cheap and help organization immensely. Don't forget to record your data!
As for powders, that is often the most difficult choice. Once again, your cartridges are different enough that no single powder will work well in all of them. I must say, however, that I really like the IMR series of powders. They are the most available and best priced in my area, they seem to be very consistent, and there seems to be more published data on them than any other powder. Almost every loading manual lists IMR powders, and adds other brands as budget and space allows.
