I bought one a year ago, a red top 34/800R, from http://www.batteryweb.com/optima.cfm. Cost then was $133 shipped to my door in two days. Service was excellent. At the time they were the best deal I could find. Now I see that their price is about $160 including shipping. Might be able to do better than that somewhere else.

The battery fits perfectly and has performed very well thus far.

Len
'99 E300TD