SLacowboy- Here is what I'd suggest to you about finding good cur dogs to get into,
Don't run right out and buy a cur dog until you have been around a few different styles and breeds, once you know for sure what you want in a dog 100%, find the guys who have that line/style/type of them and buddy up with them and hunt with them when you can, once they can tell your serious and know how to handle the dogs and will hunt/work them hard they will maybe allow you to get some of there blood, maybe for free
Just my opinion anyway