Hi,
Justin, to start, you only need 3 gravers, all of which can be ground from 3/32" Glensteel, HSS, or Momax square blanks. A small 90o square graver, larger 110o square graver, and a small flat graver will handle all of what you are likely to do. There is so much written over the years on this site about engraving and gravers, folks really should use the search tool. The other piece of the beginner's puzzle is learning to sharpen. If you cannot sharpen gravers properly and often, you will not be able to engrave. To that end, the Lindsay sharpening templates and system is extremely valuable and will get you up and running faster than any other without spending a lot of money.
dave