Most usefull site i have found...after this one of course ;D
It might already be on this forum as the tv show 'grow your own veg' was on a little while ago.
I come accross this earlier and have watched all the video's. They are very clear and easy to follow and the other info is easy to follow inc calanders and how to's.
http://www.rhs.org.uk/vegetables/index.asp (http://www.rhs.org.uk/vegetables/index.asp)
Neil
and cheaper than buying the "Vegfinder" book there used to be! :-X