Here are a couple of great sites to help you plan healthy and affordable meals and create a grocery list as well:

 

http://www.dinnertool.com

http://e-mealz.com

 

Here are a few sites to help with meal planning and couponing:

http://www.faithfulprovisions.com (for couponing)

http://allergenfreeplease.blogspot.com (for those with allergy issues)

http://family-health-and-nutrition.com (healthy living on a budget)