I never heard of that before quality is same as Hauppauge 1212.....I'd say external is more of an easier option.
I've never used Hauppauge before, so I really can't compare, but the Blackmagic Intensity Pro was incredibly easy. I just plugged it in and it worked right away. Of course, that's just my personal experience. Your mileage may vary.
I use one of these; it's cheap, but it's not hi-def. If you have a high-end computer, it may already have a capture card in it and you don't need anything external. I'd make sure on that before you go buy anything.