suspention upgrades

[stuartrf]

Hey guys
I'm after some advice
I'm going to take my car 1.8 gdi to the nurburgring later in the year now I know the car will never set any lap record's but I can try and make it handle as well as possible
I have lowerd the car 20mm from sport (changing drop links at the same time) I have also bought 17x7 wheels with yokohama pradas on order I've also got a strut top bar ( rear bar is not an option as I sleep in the back of the car when I go camping)

I would like to try and eliminate more body roll and uprated roll bars are out of the question due to price so I'm looking at polybush but can't find any, what do you guys use?
What are your guys views on camber/decambering what should I set the front and rear at?
What is the ideal tracking setting?
Any other mods people can think that will help me have as much fun as possible

many thanks
stuart