Square Foot Gardening

Another link from Noe! This one has some helpful sidelinks on companion planting and composting to check out:

http://www.countryfarm-lifestyles.com/square-foot-gardening.html

Quote from the article:
"According to Mel, by using this system (square foot gardening) you will save 80% of your space, time and money normally needed to garden, and in addition your results will produce a better harvest that is continuous with less work"

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/

Square Foot Planting Guide