Kaan will do you a deal on the link above.
John at K Sport (see Robby Jais brake threads) gets lots of recommendations, if you're mostly looking for a reliable source with excellent service.
If you're really pushing the car and taking it to the track regularly, then get familiar with Robby's stories since he's been few a few bits of brakes on his 'Peak Performance' S3.
V sport bizi ;-) Not K Sport
Yes John Knows his brakes. V Sport is part of the Comp Friction Group and BSM (Barry Smith Motorsports) who supply a lot of brake gears for the V8 super cars... GTP and other track and rally racers..
highly recommended and quite a few forum members go to them to get their braking needs attended to...
i use to have a R32... but unless you track it or have serious amounts of power...... big brake kit for the R32 is no necessary.. the stock jobbies are great. just change the brake pads.
john at v sport looks after all my brake needs and servicing after my track events. as bizi suggest.. i've been through quite a bit of brake gears and combo on the r32 and s3...
and the set up i have right now.. is probably the best combo for my needs which happens to be the AP Racing Brakes you are looking at. 6 Piston 2 piece jobbies
not cheap either!