Go with solid silver cables RCA's.
Or just go to monoprice like a normal person and pick up some cheap RCA's.
I will say this, unless you're 100% sure you know where everything is going to be and that it's going to stay that way for a good long while, buy the next size up in cable length.
Twice now, I bought cables that fit for where I had my stuff set up and twice now I've had to rebuy cables to fit a new configuration. A little extra length can go a long way and isn't that hard to tie up with zip ties until such a time that you may need it.
Plus they're cheap so stepping up in size isn't going to cost you an extra arm or anything like that
