Thanks heaps guys, and I really appreciate the sample code as well. I'm not too sure how accurate my data must be, but I'm hoping it won't need to be too accurate. I think for now I might use your sample code, and see how I go, and then later I can work on adding the clock and interrupts, I'm not sure if I'm adding any extra sensors to my board, so this would probably be the best way to prototype it.
Cheers guys.