17th Birthday Party Ideas?

I'm turning 17 in March, and would like to plan a birthday party. I am a girl, and I am going to have 4 other girls with me. Any ideas? I'm not super girly, and not sporty at all. I guess if you want/need to know some things about me, I love books, music, and travelling. I am a total geek (LOTR/The Hobbit, Star Wars, Marvel, Supernatural, STUDIO GHIBLI, Disney, etc.). I do like girly things, like manicures and stuff, but I don't really like shopping. My family is middle class, and don't want to spend a whole lot on this party. Thank you!