I would like to know the best way to connect it to my computer would be (which cable).
I herd that certain cables restrict the refresh rate to 60hz, or 85hz, (or something like that) so which cable should I use to maximize the response time and refresh rate I don't mind waiting for one to ship.
I have two radeon 7970s in crossfire if that makes a difference.
i agree, use the cable that came with it. i too have a 120hz, i used (tried) the old one that i was using (lazy), and i could not get it to do 120, so i tried the cable that came with the monitor and no issues ever since