I've got the BT-014's on mine and really like them.  Very neutral, very stable, very confidince inspiring.  Look great too.  I'm also a Pilot Power fan and would say you can't go wrong with either one of these tires on the street.  I have also heard excellent feedback about the Pirelli's, I'm just not a huge fan of the looks.  I know alot of people run the Corsa on the front and standard Diablo on the rear with great results, just haven't seen any on a SS.  I actually considered putting the 014's on my 749 after putting them on the SS, but then I heard Bridgestone is coming out with a tame, street version of the 002.  That should be worth waiting on.  If I don't like it, I think I'll stick with the Power's.
  
  [Edited on 28-2-2006 by galaxy]