Also, keep in mind that over the sound hole is not the only place you can play. Yes, it is the "normal position" where you should be at, but experiment and move around and you'll see you get a different tone wherever you play. I play classical and flamenco guitar. In classical, you want to be over the sound hole because it gives it a fuller sound with more sustain. In flamenco, you traditionally play closer to the bridge because you get a brighter sound and less sustain, which is the sound you want for that type of music. If you are doing a fast alternate picking (er...fingering I guess) run, sustain can make the notes ring out too much and blend together. Play that same run closer to the bridge and your notes will be a lot tighter sounding. Experiment with the sounds and know what they give you. Then it will be as easy as moving your hand back and forth a few inches to get a completely different tone and mood for your music.
You're doing the smart thing by asking questions to make sure you are starting the right way. If you pick up a certain habit from the start and learn with it, it's going to be tough breaking out of that. On that note, I'm sure you know there isn't always a definite exact way you MUST play something, but there are general rules to start learning on. Once you know how you SHOULD play it, you can tweak it to what feels more comfortable.