Car Battery

Is there a good web site on researching reasonable prices for car parts. the place where i have dropped off my car has quoted me $110 or so for the battery. i know it takes not more than 10-15 minutes to install one, so, that means, they will probably charge me around $150-200 for the work and the battery.is that too much? how much should i be paying if i buy a battery on my own at say walmart or some reasonably place store?

That is a ripoff. you can get one at autozone or walmart for $60. it takes 5 minutes to put in.