get into a club where you can borow a bow to shoot and practice with. And your friend is probably right on the 30# draw weight!
As for a second bow, look into the classified here, you can find a great deal on used bows, that some time have never been shot.
look for well known bowyer, and don't go crazy on draw weight, I think, unless you plan on hunting in Africa, 45 to 55# would be planty, as long as you have arrows that fly thrue and are some what heavy. Get good form, and if you can some coaching, or at least some one that know how to shoot a bow. You can get a bunch of books and DVD's, I like the one writen by G Fred Asbel.
Good luck!