So start with his short stories or novellas. Or even his shorter novels, like The Girl Who Loved Tom Gordon that Sasquatch mentioned. For short stories, I recommend Everything's Eventual, because it has a good mix of different things, and even a little peep into the world of Roland Deschain.

I need to read Eyes of the Dragon. And everything else. I like Stephen King

Out of curiosity, has anyone read his non-fiction stuff like Danse Macabre or On Writing? I've been wanting to read them, but I can't find them anywhere.