Keep looking! The warranty is what sold me!

 

heres the link

Duracell® AGM Automotive Battery - Group Size 78DTAGM - Sam's Club

 

Doesn't look too bad for the price.
20 amp hour rate:55
BCI Group Size:34/78
CA at 32 degrees F:955
CCA at 0 degrees F:775
Reserve Capacity:120
36 months Free Replacement
96 months Pro-Rata Warranty

For Comparison, this is the Diehard Platinum P-4
Group Size 34/78DT
Amp Hours at 20 Hour Rate: 68
Cold Cranking Amps (CCA at 0 deg.F): 880
Reserve Capacity (RC): 135
Free Replacement Warranty: 48 Months
Months in Use Pro Rated Replacement: 100
$219 now (was $179 in '09 when I got mine)

 

DURACELL AGM Absorbed Glass Mat Battery, Group 34 at West Marine I don't know the price

 

Hi, I've found these very good - Bosch S6 AGM Gel Car Battery Type 019 With 3 Year Manufacturers Warranty. I use Bosch Silver on all of my vehicles and although more expensive over years it pays dividends.