What I have seen here on the DIS and from clicking around on Milsources site... you redeem your miles for supercertificates, redeem your supercerificates at giftcertificates.com for Rain Forest GC's. It might be worth your while, and mine for that matter, to see what else you can redeem your supercertificates for, maybe something local and then use that $$ saved at WDW. There is an exstensive list at the giftcertificates.com website.