I'm fairly new to the MK5 golf scene but I too considered the ED30 and the MK5 R32.
As mentioned before by someone, the fuel consumption did it for me but also the tax bracket difference.
I tried to weigh up the pro's and con's...
R32 DSG
- Another 20 bhp
- 4WD Traction
- £400 band "G" tax bracket (for models registered 23 Mar 2006 – 31 Jul 2008)
- Claimed 29 MPG
- 1538 KG
ED30 DSG
- £210 band "F" (for all models)
- Claimed 35 MPG
- 1376 KG
Seeing as I was using the car to get to work and back I choose the ED30.