not to take business from bigcat but personally you are better off doing it yourself. Link building is a very very important skill to have if you want to make any kind of successful sites in the future.
That might be true if time isn't a factor (or boredom). I think learning to outsource backlinking well is probably a more efficient use of time. Anyway, I think you may have gotten the intent of the posts backwards (if not my apologies). Dan