Thanks to you guys and the info on this site everything went great.
Before going to Fairfield MB it occurred to me to check the Good Shops section, I am so glad I did.
I followed some members advise and contacted Carriage House of New London and was quoted $109 for the battery. Even though it's kind of a ride for me I went anyways. I am so glad I did, not only was I informed that this Novemebr they will hold a workshop, were we can bring our cars and mingle with the technicians but I was given a discount on my purchase for being a member of the Mercedes Benz Club of America.
The drive was well worth it!!!
Thanks again for all your input!!!