The most popular form for modern fly rods to take is that of the 4 piece graphite rod, varying in length from 7'6 for low weight rods to 9' or maybe a bit longer for heavier weight rods. This is for good reason - they are extremely versatile and if you're going to just have one or two rods to fish a variety of environments, you'd be smart to choose them. Our Drifter and Outcast series are great examples of this format.
However, there ARE other options out there that cater to a more particular or specialized audience / fisherman. We work with our Pro Team in the development of these specialized rods, and so far the reception among customers have been great. We currently have a great European Nymphing rod, the Epiphany, and a classic action Fiberglass rod, the Revival. Check out these rods if you're looking to experience a different aspect of fly fishing.