Goodyear F1 GSD3's! highly rate them. Great in Dry and Great in the Wet too! Falken FK 452's are also good tyres in both conditions. Alot of people have different opinions. I had the GSD3's on my A6 2.5 V6 TDi (FWD) and my S4...both went really well. On my A8 4.2 V8 i've got the Falkens on and again, brilliant.
Have tried Bridgestone (crap), Michelin Pilot sport 2 (crap) and Conti Contact Sport 2 (okay but not brilliant) Thats my 2p thrown in.
Although, after searching for your tyre size, it's not a very common size. Could your tyres be 234/45/17??
UK Car Tyres, cheap tyres at cheap prices online. or
Tyres at mytyres.co.uk: car tyres, 4x4 tyres and van tyres at low prices are very good, cheap sources. Free delivery inc or have them fitted at a approved centre.
Dan