There are tons of books and videos available nowadays, Dave. The How to Run a Lathe is a good one, as Winegrower said. However, you will find that nothing will teach you more than just turning down some stock on your lathe. Watch your tool cut, listen to and feel your lathe as it loads up, pay attention to what different speeds and feeds do when roughing and finishing. The lathe is the best teacher there is for learning how metal likes to be cut ... if you pay attention.
The most important questions are what, why, how, and how much. Do your homework, search the net, watch videos or ask the guys on the forum but answer these questions and you'll progress much faster. It isn't enough to know which lathe tool to buy; you need to know why its the right one, how to use it and so on.
Try to know why you need every single thing you buy, then buy what you need and hold off on things you simply want until it turns into a need. It will pay off to know which tool is the best of its kind; then go find it on ebay for a killer price. Over time, your shop will be filled with top quality tools that didn't cost an arm and a leg.