Fall Wedding Centerpiece/Flower Help

I`m getting married Oct 15, 2006 and we`re having a fall themed wedding. My bridesmaids dress colors are peridot,wine, and chocolate brown. I`m using silk fall leaves as well as votive candles in pumpkin scents for around the cake but need help selecting flowers for each bridesmaids given that their dresses are different colors. Maid of honor in chocolate brown, two girls in peridot, two in wine. I was thinking of using three different flowers and having each two of the same carry the same and then the MOH carry something else and then my bouquet would be made up of all three. I need flower ideas and centerpiece help!!!