oh steve, you know i'll defend R32s till the day i die

by all means test drive an ed30 if you haven't already done your research, they're very different cars.
If your heart is set on the bigger brakes, 4motion, addictive exhaust note and frequent visits to the petrol station then check the service history for haldex services as well as the dsg work. A set of discs and pads all round can cost 400 quid from vw for the parts alone so its worth checking those out too it could get you some off the asking price.