Well, i got my car back today with the Eibach springs fitted.
It looks great, its not too low, and handles noticably better than it did before on the twisty bits.
There's no rubbing on the arches at all, and the ride is a little firmer, but i'd say only a little!
To say these springs are offered by Ford Parts UK, i think these are a pretty safe bet IMO.
I'm gonna keep an eye on tyre wear as although i've had the wheel alignment done too, the camber looks to have been adjusted ever so slightly with the new Eibachs fitted, but other than that, really happy with the Eibach 30mm sprt kit