Barbecues have long had a reputation of being the most informal, low-maintenance and least expensive methods of entertaining. Just toss some burgers and wieners on the grill, set up a few picnic tables and you're ready to go. Well, that might work for family cookouts, but a true barbecue is not a casual, slapdash affair. It's every bit as detailed and time-consuming as a formal evening, though it's far from stuffy and is always centered around something coming off the grill. More