Another great benefit of being a DVC member is a $20 lesson on Thursday or Friday mornings. On Thursday the lesson is the long game and Friday is the short game. The lessons are at LBV at 9 am. It is a group lesson but many times there are only 4-5 people signed up. I had a lesson session for my 2 DS who were the only members in the class.
I can't remember if club rentals are discounted for DVC members. If you take a lesson then play, there is only one rental fee for the whole day. If there was a discount, it was only 10% or so. Also, another perk is a taxi. If you play at WDW, you get transportation to and from the golf course via taxi or shuttle.
Call 407-939-4653 Disney golf and ask for Lake Buena Vista pro shop. They can sign you up for a lesson and answer the questions about the clubs. I think the clubs this year are Taylormade Speedblades and Jet speed drivers. Golfwdw has more info, too.
Lesson sessions are great.