Just bought The Dark Ride and Rabbit Don't Come Easy by Helloween today, and frankly I'm blown away; both of 'em totally kick ass! If you're a fan you'll totally hit 'em in stride here; if not, this is a great place to get on board.
Helloween started out as a pretty blatant 'Maiden ripoff band, but something curious happened on the way- they became really good. And not at copping 'Maiden, they really found their own sound. Much looser and funnier, they don't take themselves too seriously. Much lighter stuff.
Again, very good stuff if you dig 80's style metal.