<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by sowalsky:
What is the best airport to use? MSV does not appear to have commercial service.</font>

I'm guessing this is your first trip to the area.
If you don't mind the drive, you'll likely get the best price with Newark Airport (EWR) but as mentioned above, Newburgh/Stewart is the best bet from a distance perspective, but likely to be more expensive.
Enjoy your trip.