Thanks all.
So I think I will go with Eibach springs and the Superpro ALK for now and see how I get on.
Then maybe the Antiroll bars as suggested.
If the oem shocks are upto the job, it should do me.
The 20mm drop should be enough for me.
How are people finding everyday life with a 20-30mm drop? Driveways, multistory car parks an issue?