What cable should I buy

I understand that DVI is my best bet to hook up a video card and monitor. I also understand that dual-link is the way to go. I have 28 inch monitors with 1920x1200. So should I buy a DVI-I or DVI-D and is there a difference in the brand? Is there something I should be looking for such as speed which is in the link below? Advertising is so misleading so I want to make sure I get the right cables. I'm getting a 7850 video card which is leading me to this post because these cards have 3 different connections to them.http://www.amazon.com/Cables-To-Go-26911-Digital/dp/B0000X0VCY/ref=sr_1_3?ie=UTF8&qid=1358786329&sr=8-3&keywords=dvi+cableHere is another cable that they are selling for just 10% which I'm having a problem with, so would there be a difference in the 2 cables?http://www.amazon.com/DVI-Male-Digit.../ref=de_a_smtd

What monitor do you have?

There is a difference. DVI-I means it supports both digital and analog signals so if anything that's the safer bet. DVI-D only supports digital signal.