Or keep the money in the bank, and save another 300 and then go for a Bilstein B12 Sportline kit which includes Bilstein dampers and Eibach springs.
this is what i'd do
X3
X4 sweet talk Graeme @ GNJ motorsprt on here
You make me sound easy
My opinion on suspension is....
If you want a nice ride with a drop suitable for everyday driving with a big improvement in handling and are not massively fussy about the ride height then get a full fixed height suspension set up (Bilstein B12, H&R Cup, Weitec)
If you want to lower the car but not spend a great deal of cash in the process then get a spring kit (Eibach Sportline, H&R, Weitec, AP)
If you want to lower the car a lot then get some mid range coilovers (V Maxx, FK)
If you are fussy about a gap in the arch, want a decent ride for everyday and drive in a more spirited fashion more often then get a good coilover kit (AP, KW V1 Inox, Weitec Hicon GT, Bilstein B14, H&R Monotube)
If you are all the above and do the odd trackday then get a coilover kit with adjustable damping (KW V2 Inox Line, Weitec Hicon TX)
If you are a full on petrol head who spends many a weekend chucking your GTI round a track and going on driving weekends to deserted stretches of road then get a top end coilover kit (Bilstein B16, KW V3 Inox Line, KW Clubsport)
Not everyone will agree with me but the world would be a boring place if we all thought the same. I never advise people they need the latter unless I think it is necessary.