My gf and I are in our mid-twenties, coming down to ATL for the weekend. We'd like to do a rooftop lounge or rooftop bar with good music saturday night, but would prefer not to be around a young, rowdy or unsophisticated crowd. looking for top 40s, dance, some hip-hop. Any suggestions would be greatly appreciated. We're from New York, so not too concerned about pricey drinks or anything, as every bar in the city is highway robbery.