Well... I like an 8wt - 9ft - Fast Action Rod with a Large Arbor corrosion resistant fly reel for my saltwater fishing. I can also use this set-up for big freshwater bass, salmon and steelhead.
Now I only fish the flats and bays. This is not a big enough rig for blue water fly fishing.
There are a lot of very good saltwater set-ups available depending on how much one wants to spend. Orvis, Sage, Winston, Scott, G.Loomis all make super high quality fly rods. I use a G.Loomis GLX Cross Current with a Galvan Torque fly reel and a Cortland Redfish fly line. This is certainly top of the line equipment and is a joy to cast. Extremely durable and should last a lifetime.
Now... you can get out much cheeper with another ECHO fly rod and Cortland Endurance fly reel. This is also very good equipment yet at a more moderate price.