[UK-CONTEST] High Winds...Rope ?

[Adrian Rees]

Hi all
Well with the high winds we've been experiencing (my home WX Station tells me gusts up to 91MPH) I've been thinking about what type of rope I'll need to use to guy my towers.
Steel or Stainless Steel would (I guess) be the strongest, but that has the problem of Resonance (unless of course you break up the lengths with insulators).
 
Anyway, what suggestions does the list have for guy rope ? 
 
I have been looking at Phillystran, but wonder if a cheaper-just-as-good version exists in the UK ? If so who supplies it ?
 
As my QTH is on an exposed hill, its been pointed out that my biggest problem will not be when the Towers are up or down. The problem will be getting them up or down in high winds. 
 
Adrian MW1LCR