You want something that won't give a plastic taste to the beer, so the only one I see on that page that would work (according to the description) is the bottom one and it's like $2.64/foot. That's really so much more expensive than regular beverage line that I don't see an advantage to it.
Here's an interesting read on that: http://www.homebrewtalk.com/f35/beer...c-taste-60380/
I did order some cheap line from McMaster Carr for soda, because soda needs like 30' of line, and it worked great. But it's very rigid and hard to work with, and I wouldn't use it for taps in my kegerator- I used it for one soda keg with a picnic tap because it was not easy to work with. That line is on the site for something like $.15 cents/foot. I can't remember the item number, but I'm sure searching on the forum could dig it up as that was what lead me to that particular line. Again- I would NOT use it in my kegerator but others probably don't mind the difficulty of working with it as much as I do.