If you go w/ NXG stay away from the higher priced "professional" or "sapphire" line. They use a bullet style connector that i've had bad experience with breaking due to poor stress/strain relief. They have a very tight girp one you get them on, so getting them off can lead to accidental breakage.
I've had bot regular and pro/sapphire NXG cables and they perform very well for a low low price. The regular NXG cables seem to be just as good as the AR performance and entry level Montster THX cables at about 1/10 the cost. The pro/sapphire look/feel better and more akin to the AR Pro or Monster 300 level, but the inadequate stress/strain bothered me, especially since i'm swapping and moving gear fairly often.
I'd say go w/ the regular NXG stuff unless you are at all interested in DIY cables. I eventually replaced my NXGs w/ DIY w/ no noticable performance increase, but the build quality is a big step up and knowing for sure my cables aren't holding me back offers some piece of mind. And knowing you built something yourself that's the same as alot of the online cable companies sell at twice the price is always a fun feeling
