What snowboard should i get? Freeride riders answer please.?

ok im 14 i have been snowboarding with the little plastic pieces of crap, and although i do work on that, this year im going to like mountain creek or something a few times and i want a real board. i am most likely getting ride bindings, some kinda cheap boots and googles and gloves, idk what jacket yet etc... but what board should i get like are there cheap dc's or burton's out there for a somewhat beginner? i mean i know what i am doing no doubt and also... how to the measurements apply? like how to know which size is right for you, if nobody knows i was planning on going to a store like zumies and getting measured or whatever... thank you