Gigablast Modem/Router Options

Gigablast is available at my address in San Diego, CA and I'd like to purchase this Cox service if I could only learn what kind of modem and router equipment is supported. I'd prefer to buy my own equipment  instead of renting and I'd prefer a setup where the modem and router are separate. Does anyone know if using your own modem and/or router is a possibility for Cox Gigablast or does Cox require you to use some specific, combined modem/router rental? Does Gigablast work with a DOCSIS modem even though it's supposed to be a fiber connection? I wish I could learn these things from Cox but I haven't been able to.

Cox's online information on Gigablast is next to zero as far as I can tell, and I've spoken to four different Cox reps and no one can supply an answer. I'm hoping the Cox community can help instead!