Brake upgrade questions

[Rbade12 at aol.com]

All this rear brake stuff of late, got me to thinking about the them  
[they're fine after a new boot kit] and the fronts. I have UFO's which work  well, a 
bit of a shimmy above 70, but, upon close inspection, the passenger side  
piston boot had 2 tears [I sealed with RTV] and both rotors are probably 10k  from 
the grave [much higher wear on both inners], so.....I've been to BIRA and  
they suggest a pair of Porsche 996 4 piston monobloc calipers mated to Mercedes  
V12 320mm by 30mm rotors. They claim it's a completely bolt on modification  
[with 16" or larger wheels]. Does anyone have experience with this mod, or any 
 other mod that works well? Does anyone know where to acquire the parts they  
recommend ? The way I see it, with new UFO rotors running a least $200+ea.  
[their impending warping included], I'd be better off putting the money toward 
a  solid, conventional system. I plan on keeping the car for many years. Any  
insight you folks could provide is appreciated!!!
 
Thanks,
 
Bob Bade   Franklin, Wi    91  200q20v     97k