When out-of-towners visit our restaurants, they want more than good food -- after all, most are privy to fine cuisine where they come from. They desire something they can't get at home. For instance, someone from up north might wish to dine outdoors, in midwinter, amid lush tropical foliage. Barton G.'s lovely orchid garden would do that trick. Perhaps other folks from Peoria or Peru would prefer a pulsating SoBe social scene. They would need to look no further than Barton's bustling bar. A couple from San Jose or San Juan can be titillated by lobster pot tarts served in a toaster; a toddler from Tallahassee will squeal with delight at the make-a-shake dessert that features ice creams, syrups, toppings, and a blender to mix it all up; and when Midwesterners get served a swordfish shish kebab ($31) the size of Sinbad's scimitar, well, they'll know they're not in Kansas anymore. Then again, maybe one of your guests, possibly a faint-hearted dieter from Delaware, disdains the idea of orange-glazed duck dished in a wood decoy. That person could choose from straightforwardly grilled meats and fish (ranging from $20 to $59). Regardless of how you order, everything here is done with panache, and in elegant surroundings. Barton G. is a place your guests will be talking about long after they depart Miami. Which is precisely the point.