Wow, thanks for all the replies guys
@ charlieboy : Those brakes look the business, I'll look into those further, thanks for the info mate
@ faster4_tec : Yes, I'd imagine there's a few hours labour involved so it's not such a bad price. If the rears are "upgraded" it's another £200 on top, but I'm not sure exactly what you get with the rears.
@ 1986Uno45S : No graphs or anything but there's been a hell of a lot of testing with these brakes and they have proved to be extremely effective under all conditions, both on the track and the roads. There was also a video of the car being driven around a track with these brakes fitted and it was out braking a lot of high quality cars. There's the word of a very trusted guy from vauxhall who developed the VXR, and he's giving his full backing to the brakes, hence them being made available at certain dealerships.
@ Pinin : I wish my pockets were a little deeper to be honest mate. This is my main concern with the purchase. Having a big family and trying to keep the car the way I would like it means making sacrifices and basically the purpose of this thread is to find my other options before I do spend what in reallity is a lot of money on a set of brakes.
If I can find something half the price or even less that will do a sufficient job, i.e. 25% better than the standard setup I'd be happy.
I just want to cover the extra oomph the car has got with a set of brakes capable of stopping it safely.
The standard ones have been perfect on the roads, and on the track they coped fine, it just would have been nicer for more of an eye popping stopping distance.