| I remember playing some Iron Maiden, especially Powerslave, that was pretty nice to jam on with my buddies. Also, Sabbath, if you are willing to downtune for some of them-Sweet Leaf, etc, or you can just play it tuned standard, like we did with Paranoid. Another good band is Alice in Chains. A lot of the 'classic' metal bands that are somewhat close to rock have some good simple songs to jam on. Another good thing you could do is just learn the blues and jam on it-that's a quick way to learn a lot of classic rock songs (and jazz, and tons of other stuff), too, since many of them are based on it. | 
