like I said in the other thread, I started my menu plan by writing down our favorite meals. I have a recipe card with meals listed that are our favorites that I add to when we find a new favorite. That's what I shop from when I'm looking at what's on sale at the store that week. If I see that chicken is on sale for a great price, I'll pick a few chicken meals that I can duplicate, put it on the planner for 1 meal to eat, 1 or 2 to put away. I keep one night a week open for eating out, trying a new recipe or using up leftovers, or just a smaller meal because we're not hungry, etc., and can adjust the week accordingly.
I then have a basic menu for a month where I plug in meals. I look at my freezer inventory sheet to see what's in the freezer, so I can shop from the freezer, then fill in for fresh meals.
http://www.menus4moms.com/
This site has a paid menu plan and a free one (on the right side) that is emailed you to you weekly. I use it for fresh ideas.