Was looking at The Free Press On Line and they have a Market Basket Thing that shows the price differences between different stores like City Market, Hannafords, Price Chopper & Shaws. They always seem to pick 5 items that I don't buy. If you could only input your own items and get a price comparison, that would be great - With today's computer age, I am sure such a thing is possible. I pretty much play it by ear, but find as an average, prices are definitely cheaper at Hannafords for the things I buy.
If interested, you can click on the following link to see what I mean by the things they have up there:
http://www.burlingtonfreepress.com/assets/pdf/BT12759221.PDF (http://www.burlingtonfreepress.com/assets/pdf/BT12759221.PDF)