Doing the exact ame thing as you...group of 15 for june 2011...have a Deluxe studio and a GV @ SSR...got off the phone with MS on sat and booked a dinner @ LeCellier, Chef Mickey and Fantasmic dinner...still need to iron out the other 3 TS meals, but very happy to get in Le Cellier...now with 15 that is a tall task there, but with 3 ressies all within 15 min, we are good to go....dad is a canadian, so I know he will enjoy it....
One thing to keep in mind....(which I didn't know)...even with the 180 day out ADR date...if you are staying for say 10 days...you can call on he 180 day mark and book ALL of your ADR's, and not have to do it one day at a time as the 180 day mark clicks by,,,so you can book the whole trip with one call on your first day...good to know, not now....but in the future...good luck with you planning!