?2000?? ?200-?300 odd for the exhaust, ?100-?180 for the induction and ?380 for the wheels... I'm nowhere near a grand yet.... even if you get it all done professionally.
I finished uni in 2000/2001 (full time / retakes

)... bought an old banger two years ago, got two year no claims and now I just bought a nice '98 Golf cabby and tweaking it around nicely.
Milltek "Jet" cat-back was ?320 inc VAT & fitting at AmD... I had the car in there for a few bits and pieces: engine remap, brakes, strut brace and induction (Pipercross, they wouldn't do me a K&N57i or even a PiperX Viper

)
Brakes were about ?230 for the front (pads and discs) and ?230 for the rear (pads, discs and bearings).
Add that to the new stereo and new rubber all-round and we're talking about two grand on the car straight after I bought it

BTW - the that Milltek pipe fits perfectly under the existing body kit, so no need to change the rear skirt... sounds v nice, but does drone a bit when you accelerate on motorways and fairly constantly over 80mph... take the roof off and you have to be going a bit quicker before you really notice it.... although overtaking in tunnels, especially with the roof down can be pretty impressive sounding!! The first comment I normally get is "I didn't know they put the 2.8 in the cabby's"... although to be fair if you know what you're listening for it's nothing like the proper purr of the VR6!