chelbaby was correct on the phone number, but they won't talk to you at that number unless you're a member already. I don't know the non-member number, it's probably on the dvc website. because the points vary by season, holidays, weekend vs. weeknight, etc. (same as rates at the fort) it is hard to figure number of points to purchase. I think I would aim high. Since busiest times are 16 points per night multiply this by number of nights you'd stay times number of sites needed. I usually stay midweek (DH works weekends) during busy times, but not national holidays, so I typically use 10 points per night. (If I had to do math for myself, I'd say 10 points per night times 4 night stays times 3 visits per year on points = 120 points) We always buy thru thetimesharestore.com They also happen to sponsor the DVC thread on this website. The only drawback (currently) to purchasing on the resell market is that the points will not be able to be used for some conversions, including the cruiseline. For more info I'd go read the DVC thread.