Just wanted to add my 2 cents about PlanToEat. I have been using it since last November and love it. It is simple, easy to use and excellent for disorganized poor planners like myself.
I am a tax preparing CPA and I used it last year to meal plan for "busy season," January through April, by planning freezer meals for the duration. I found the freezer meals online, imported them into the software, created a huge shopping list and did a weekend of prep-work for 3 months of meals! It worked great.
I've also put all of my favorite recipes on there so no more searching for recipes on scraps of newspaper or magazines or cookbooks - I just have to open my computer to have access to the recipes - and no more writing out shopping lists, which I love - you bring up the shopping list on your phone and can check off items as you find them in the store!
Great software, well worth the $20 annual subscription (as mentioned above, this is the discounted price).