It depends on how sure you are that reloading will be your 'thing'. If you not sure, you may want to go with a Lee loader, which can be had inexpensively. If you think this is something you will pursue, I would recommend going out and getting an RCBS package. Redding, Hornady, Lyman are also good, but my experience has been primarily with RCBS equipment.
You will need a press, set of dies and shellholder for each caliber you load (243 and 30-06 use same shellholder). You will need a priming tool (here the Lee hand tool is a good choice), powder scale, case mouth chamfer tool, calipers for measuring, and some way of trimming cases. Much of this is included in the packages. YOu will also need a study workbench for the press.
If you don't already have one, your very first purchase should be a loading manual. I Like the Lyman manual, but Speer, Hornady, Sierra, and Hodgon are all good. They will contain all the basic information about reloading and how to reload.
From there, you can determine which components you want - bullets, primers, powder, and cases. If you been saving your factory cases, you can use those.
Catalogs like Midway or Midsouth offer most of this gear, and can help you choose. POwder and Primers are best purchased locally, so you'd need to find a gunshop that carries reloading supplies.
PS You might get more response posting this on the reloading forum.