Defo get the red sleeved modular cables for the PSU that Corsair does, I bought them for my system ,and they're so easy to work with!
Have a look for yourself: http://i.imgur.com/0B7s3m3.jpg
Ignore the extra cables at the bottom of the case, i plan on getting a 2nd GPU soon, so left in the cables for that and tucked it away at the bottom