Hello all. Looking for some cable modem recommendations. I need a 3.0. My isp recommended I get a modem that has 8X. Dont really know what they mean by that. My broadband speed is something like 20 mbps. I do online gaming and movie streaming. My current motorola sb5101N is pretty much obsolete. Some oofthe modems are pretty expensive and offer data speeds up to like 300 mbps. But since my isp provides only around 20 mbps, would it be a waste to get something like that? Anyways, thanks for whatever you guys can help with.