There are 3 basic types of Muskie rods, Bucktail,Jerkbait and trolling. If you're just getting started you can use one rod for everything...A good bet for a do everything rod would be a Shimano Compre 7 foot 1-3 oz.
Buctail rods are typical 7 1/2 to 8 feet with a lure rating of 1-3 oz. Jerkbait rods are generally shorter, about 6-7 feet, with a lure weight rating of 2-5 oz. For trolling a glass composite rod in whatever length you prefer with a lure weight rating anywhere from 2-8 oz.