Jerry,

I would recommend using Ultracam or 452X for your cables as they are great materials for not creeping and are extremely durable. I have not used 452x yet and thus prefer the Ultracm to 450+ and 452 because it has less of a tendancy to fuzz.

If you want speed, I would go with either d75thin or 8125 for the string or maybe the new TS1 material which is supposed to be very fast and supposedly they have kept the creep minimal. D75Thin and 8125 are basically the same and the TS1 is a new version of fastflight that is made differently so as not to creep.