I dont know if you have these already but I would throw in acouple of good books.
I just recieved Workshop practice series #35 "Milling a Complete Course" and it explains how to make a few tools with your mill and some with a lathe. To give some examples T-nuts, Angle Plate, Paralles, Boring head, Dividing Head and a tool grinding rest. The way he wrote this book is a step by step. First you need to make your tnuts then it goes into the angle plates and so on. And everything you make you need to use to make the next tool. He also doesnt use a vice until page 86 and then he shows you how to make a drill vice adequate for milling. Pretty much you start out with a endmill and 2 bolts. If you follow the book along you will have a few tools and more experience under your belt before buying and spending hundreds on tools that sit in a drawer or a corner of the garage. Others here can probably offer up some other good books or links. Good luck
Link to book