Even some of the magazines at newsagents can be terrific sources of info. Most of them have 'zones' so you can see what grows best in your area at what times.

If you really want to do it right, learn to grow from seed. Google Diggers - they have all the best pre WW2 species, teach you how to save seeds, have a fanTAStic vegie growing guide and membership comes with 4 catalogues a year and it drives you nuts trying not to go overboard with your choices. Highly recommend Diggers.

hth