Take a look at this page:
http://www.pbase.com/mainecruising/battery_cables
*and read the description of the H.D. crimper for about 140.00.* If I didn't already have* good, H.D. crimper I would go for the non ratcheting version at the page bottom.** Also if you look around the site a bit he has some good points about the lugs themselves plus other stuff electrical.