Right, time has come to replace all 4 tyres.
Currently have the Goodyear Eagle F1A's- they have been good, although they seem to have worn quickly. The F1A's have lasted 16.5k- I do a lot of motorway/dual carriageway driving, I was expecting to get about 25k out of the F1A's or am I expecting too much? I always swap my tyres (back to front) every 5k to get even wear.
Anyway, I have gone for the Yokohama C drive assymetrics as replacements- I thought I'd try another brand. Would have gone for the F1A's again, if I did less mileage. The F1A's are great in the wet and the drip is awesome. I've gone for the Yokohama's as they have the assymetric design, which I think works well.
The Yokohamas come in at £95 each (inc fitting) where as the F1A's are £115 each. Tyretraders.com are supplying the tyres.
Will report back my findings on the Yokohamas once I have got them fitted.