PFM six pot calipers and 320mm discs
 

For sale in the UK but will post across the pond.
This is the full race kit, it won't work with the stock discs they are too small, have a look at the PFM site for more info
http://www.pfmbrakes.com/products.php
or
http://www.pfmbrakes.com/shop.php?man=8&mod=68&kit=2

I have the calipers with hoses, two complete discs and a set of pads. These are used but still have plenty of useful life. Fantastic build quality, very durable, awesome feel at the lever with stock master cylinder, very trick.
pics in hand if you want to drop a line to gronno at tiscali dot co dot uk