Garden Planning Sites

This link has some pre-planned square foot gardens, plus a link to plan your own kitchen garden (UPDATE - tried this garden planner this evening and it is way fun and helpful!):

http://www.gardeners.com/Kitchen-Garden-Planner/kgp_home,default,pg.html

This one gives some steps on planning, plus has links to a ton of pre-planned gardens too:

http://www.mysquarefootgarden.net/create-garden-plan/