i just got 2 new Interstate batteries for my junk. theres no optima dealer in this area that im aware of. interstate guys are everywhere round these parts.
it depends on the purpose of the truck and batteries, Optimas gell cell is pretty cool, and the power isnt bad, but they not that great of batteries.
I've got some huge batteries, can't remember the name for the life of me:bang , they are used in cell phone repeater towers or something like that, work great for that crazy stereo of mine, and my dual alternators take care of them real well