Try "Horse With No Name" by Neil Young - it only has a couple of chords, but it's a good strumming pattern to begin with. I can tell by your choice of beginner's songs that you're interested in hard rock and heavy metal, but I think it's best to learn the basics of a variety of styles before you specialise in one. See if you can look up some easy pop, jazz, blues, classical and reggae tunes as well as rock songs. :)