I need some new Pads and discs for my RST (I'm running ST170 front brakes)

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Anyone recommend a supplier?
I'm looking at Black Diamond discs and pads (about the only supplier I can find

) Anyone had any experiances Good or Bad? I was worried they're abit Max Power?
What about pads? Whats best?
Any traders got any prices for the above it would be appreciated.
n.b. I don't want plain discs..thanks