About seven months ago, I went ahead and purchased a macbook pro. I love the thing, but I am rapidly running out of space. I'm thinking of purchasing an external hard drive, but honestly I don't know a thing about how they work. I know I can store my music and photos and such on it, and then to access them just plug it into my laptop, but what about running programs from it, especially programs where framerate is a factor like WoW and Vanguard? Also, are there any external hard drives that are wireless, so I don't have to connect my laptop to them? Please forgive my stupidity here, this is new territory for me. Any recommendations on brand of specifications to look for would also be appreciated.