I'll probably get blasted for this, but Sam's club has great prices on motorcycle/lawnmower batteries. For that matter, they have the best price and warranty I could find on car batteries. I have never had a piece of trouble from their batteries and the warranty is like 2 years more than on a similar one at Sears. The ones I have had hold charge well, don't leak and have lasted well past the warranty period. Just saying!
'07 VN900 Classic
Horsepower is an illusion.
Torque is the source of all good things.