I can recommend the new Michelin Pilot Super Sports, the replacement for the much loved Pilot Sport 2s. Just fitted them to my CSL rears and the grip is phenominal.
Michelin representatives at the launch stated that on a scale of 1 to 10, the old Pilot Sport 2 being a 5 and the old Pilot Sport Cup being a 10, the new Pilot Super Sport is around an 8-9 in terms of grip level. Oh, and they promise increased life over the old PS2 as well!
I'll wait to be proven on the lifetime side of things, but they don't half stick to the road!