gardengrocer.com seems to be a great choice and I have read many positive reviews for them. We are trying them out for the first time in just a few weeks!
we have used garden grocer before and were very happy. We ordered water, juice boxes, as well as fresh fruit, veggies, yogurt and bagels so that we could eat breakfast in our rooms each day. We are early risers and like to be at the park for rope drop, so this was very convenient for us. All of the produce we received was of excellent quality and we do plan on using them again for our upcoming trip.