Heh, well not everyone thinks so. I unfortunately haven't had the chance to see the original, but I will someday. I always try to do that if a new movie came out. Just doesn't seem right that I don't see them both.
Ah, there are so many fun "in" references to the original in the sequel - little dialogue quips or certain scenes that really connect them. You'll have to watch the original and then the new one back to back - they'll make you grin as catch 'em all.
I would highly recommend it. (Keeping in mind the graphics standards of the time - they were pretty advanced for that era, but not so much now. But you'll definitely see all the inspirations for the current version in the original).
It's an interesting outfit, but to be honest, I liked the ones in Legacy better, especially Quorra's, with only the shoulders showing any flesh, and the padding the way it was. Hope someone comes up with a texture like that for a bodysuit.