Be sure to get the right rope. Having an actual roper training you really helps, so if the company will pay for it, ask for 1-2 lessons. Once you've been shown, you can practice on your own and really get the tricks.
Thanks for that! I also found this website yesterday http://www.juggling.org/books/lasso/ and it seems really helpful. I'll try and find some good rope and test some of the techniques over the next few days.