Those Koni coilovers should be nice enough. The KW V3 are the only that my mechanic would consider buying but for their price you can buy from Koni or Eibach.
Woohoo - finally I've picked something you're fairly happy with! lol
Plus I see the Koni's come with a lifetime warranty from Larkspeed so should last long enough :)
@amanda I can't justify spending £1500+ I need to for the KW V3's on a car that probably won't ever see a track :(