I used MeisterR coilovers when I was in the UK. Shipping might be an issue, but they're amazing. Really well engineered. One English bloke developed them, did a lot of testing, and I've never used a setup better, and I've had Koni, Tein, Cusco, GAB, Bilstein, Eibach...

Worth a look, I think they're a around $1000, or they used to be.