Paul,
The coilover kit is about 850pounds fully fitted etc and they are made by KONI. The minimum drop in height is 30mm IIRC. As for the brakes, I am looking into buying DinkaDonka's Tar-Ox 10-pot brakes but if that doesn't go ahead, its the excellent Brembo kit that will go on. West do 2 brake kits from Brembo from 880pounds for the 310mm disk kit 1295pounds for the 330mm disk kit. The only reason I'm not going full hog to start with is due to financial constraints since, as you have already pointed up, having 245bhp also requires brake and suspension upgrades as well and it all gets rather pricey

. I'll keep you informed
Thanks,
Henry