How about this Georgia Aster? Frankly, Asters have not figured prominently in my garden for the past few years (O.K. - ever!), but I bought a Georgia Aster at the Friends of the Garden plant sale last Spring, and it has grown very tall and erupted in a torrent of blooms. Gorgeous!
Pineapple Sage is another wonderful plant; it cheers up Southern gardens every October and I'm delighted to have it in my landscape.