Gene-
Mainesail, a sometimes contributor on this board, has posted that Sam's Club is now carrying East Penn batteries, identical to those sold at West Marine, for an excellent price. I just replaced my Trojan T-105's with Sam's "Duracell" batteries @ $84 each. I am not familiar with the 12v batts, but they have those as well at great pricing. If you're near a Sam's Club, definitely worth checking out!
Rodd