Isn't peapod more expensive? Are there delivery costs? Something to consider.
What grocery store do you go to?
For a lot of the items, you might want to consider Aldi or Giant?
Do you have a lot of freezer space? Check out this blog:
http://www.lovingmynest.com/learning-activities/freezer-crock-pot-cooking-day/
She made 34 meals (some of which had leftovers) in one afternoon for less then $150.
If you're committed to planning, and have some time (maybe on the weekend?) to cook, it can definitely be accomplished.