Whatever ypu do, stick to the same size tyres, don't change them unless you are changing the rims, even then you have to get exactly the right sized tyre or you affect the handling badly and you can mess up your speedo configuration, but that's a different issue.
Personally I have Michelen Sports on my car, I'm very happy with them as they are a soft tyre, ideally suited to tyhe type of hard (heat resistent) road surfaces we have over here in Dubai. I ran Pirrelli Pzeros for a while but two defective tyres put me off them for life, especially when one of them decided to split it's tyre wall at about 100mph, nearly killing me and causing over £2000 of damage to my car!! eek!
I'm not sure about those Bridgestones, not heard much about them, the Goodyear Eagle F1s are supposed to be pretty good and I've heard many good things about Yokohamas, but they are soft and wear quickly. That's about it off the top of my head - Hope this helps!
Where has he been?