Thanks Bill!We have four cabins of family so we are definitely coming. Luckily we have enough retired military in our cabins to still cover the military discount for all the cabins.
Those are the exact rates I've found for car rentals. I didn't try USAA yet. I'm going to search every so often, so if I find something cheaper, I'll definitely post.
Sorry to hear DH cannot cruise with you all

Have you tried priceline or hotwire for your car rentals?