A couple of great sites for information re growing your own vegetables are:
www.garden.org the site of the U.S. National Gardening Association
and www.organicgardening.com the site for the magazine Organic Gardening.
Regarding saving money by growing your own vegetables check out Stephanie Nelson’s new book “The Coupon Mom’s Guide to Cutting Your Grocery Bills in Half”. if you missed seeing Stephanie on Oprah or the Today Show, or even reading about her in The Wall St Journal, she has a section in her book with hot tips on making progress with your plot.
After quitting the corporate world in sales and marketing she has honed her skills to become the CEO if her family’s budget and now runs courses and a very busy website helping others to feed their families too.