All are great Offshore Powerboat Machines!
Mercury 525's w/ XR's are the way to go! Stock, 87 octane and "Turn Key Boating" for everyday boating excursions, poker running, island hopping and lunch cruising.
The Nor-Tech 39 looks smooth, call Terry Sobo @ Nor-Tech and take one for a spin. Also, I have been on a Nor-Tech 43 on the Jacksonville & the OPBA 4th of July Sarasota Poker Runs and I have been impressed with the Nor-Tech Customer Service & Support.
The 39 OL is a nice rig with 525's running mid 90's and the boat runs well with 6 people on it in the Gulf of Mexico.
The 39 Cig, have not seen one on the water. I have also heard something about a new 2006 38 Top Gun.
Have you taken a look at the 2006 42 Fountain Lightning with the new hull, deck & dash?