Still needing to do mine, I see the "group buy" in the other place has Godspeed for £50 off ............ I dunno if I can afford em but need to do sommit soon.
You would be surprised at Brakes from Subaru now ( discs not pads) IIRC they were £100(ish) but I may be wrong, add your 10% SIDC discount and they may well be worth a shout. Better quality pads are a must though. Expect to pay about £100 at least for quality pads.
Spooks