Staging an entire meal on the barbecue is a matter of timing and making use of all the features your grill has to offer. Once the grill has been preheated, place some foil-wrapped potatoes on warming rack. Start off with some grilled appetizers, then cook the meat. Remeber that most meat benefits from sitting for 10-30 minutes to reabsorb the juices; the larger roasts being at the longer end of the spectrum. (The exception is fish, which should be served immediately). While the meat is resting, toss the vegetables on the barbecue and stir up a sauce on the side burner. Depending on the size of your barbecue and the size of your crowd, you can often cook the meat and vegetables simutaneously.