We have done that when we went in 2003. We stayed at the CBR. I sent things like breakfast, snack and some other items: bowls, spoons, cereal, poptarts, fruit snacks, raisins, nuts, goldfish crackers, chex mix, pretzles, and things were were going to use up there and didn't want to carry in our luggage like a weeks supply of diapers, swim diapers, and wipes.
It worked out great. I got a big computer box that was going to be recycled at work, packed it up a little at a time at home, and sent it FedEx Ground (it was only about $10 for a 40 lb. box ) on Monday and tracked it online and made sure it got there by our arrival date on Friday. I forgot to ask for the box when we checked in, so I just called later from our room and it was delivered in about 10 min. I just sent the box the the regular resort address and put in big bold letters to hold for me, the date of our arrival and our reservation number.
Hope that helps,