It can be a lot of fun. LIke Que, It takes practice to get any good at it. I don;t have any links, but i am sure there is some great info out there. I learned by watching others and eating a LOT of burned/Raw food (sometimes the same piece of food was both burned and raw!) You will need a few essential tools though. Get a good pair of thick leather gloves, a dutch oven lid lifter (my wife got me a good one from lodge), a pair of dutch oven pliers (the boy scouts make these, they are aluminum and come in very handy)
THe first thing you need to do is season your dutch ovens. Even if they say they are pre seasoned, do it again anyway. Heat your oven(home oven) to 350, coat the ovens inside and out with a little oil or no-salt shortening. Place the oven and lid in the pre=heated oven upside down (this will prevent the oil from pooling and geting sticky) Let it cook for an hour and turn of oven, letting it cool for a while. There are tons of web sites out there talking about how to season a dutch oven.
As far as the actual cooking, a recommend you start with charcoal briquettes. They may not be traditional, but they make figuring the temperature of the oven MUCH easier when you are starting out. When you are using normal, sized briquettes, not the huge ones you see so often now, count on 15 degrees of heat per briquette. You need to prelight more than you will need, using a chimney starter, then place one third of the briquettes on the ground in a grid. Place the oven on top of this, put the lid on it and place the remaining two thirds on top. You will need to rotate the oven and lid every fifteen minutes to avoid any hot spots. I always turn the oven 1/4 turn counterclockwise, and the lid 1/4 turn clockwise. THis just helps me be sure i get good movement. If you are using lump charcoal, it is harder to figure the temeratures, and it burns hotter, so you will need less charcoal, but it also burns faster.
There are several cook books out there specifically for dutch oven cooking. MOst of them are available through the boy scout catalog.
practice, practice,Practice. You can always find a local boy scout troop and see if they are doing a demonstration anytime soon. I am teaching a class the week after christmas at our local camp. Good luck. It is cool to know someone else is jumping into this. I don;t see many people doing it anymore.