Double setup w/ a 26" on one end, a ceramic kamado grill on the other. Stored down below, or perhaps in the middle toward the back would be a little SJS/G with smoker modifications ready to go. Two charcoal storage bins for lump and briquettes and smaller bins in a rack for a variety of wood chunks.
Extra items I'd also love to have: a wash sink on the side (or at least purel and paper towels),a rack which holds sheet pans, a propane tank (to start the grills) and a barricade to keep toddlers at a safe distance!