Nissaner,
Be careful of the load rating of the tyres you decide to get. An R33 GTR has a load rating index of 94. I recently bought tyres for my GTR and I was only able to find like 3 types of tyres that had an index that high. I even rang transport over here and they told me in an accident the tyres are checked and the load index is one of the items they look at. If you have the wrong index on your car insurance companies won't pay up.....
I had to choose between Pirelli Pzero's, Goodyear Eagle F1's and a Yokie, I went the Eagle F1 DS-G3's, unreal in the wet. Look at www.tirerack.com for comparisons...
Cheers
Brett