I purchase a lot of the seeds used on the farm from Johnny's Select Seeds and yesterday they sent out an e-mail that had links to the most useful tools that I just had to share... go here
http://www.johnnyseeds.com/t-InteractiveTools.aspx?source=E_InteractiveTools_0411CGCM
There's a ton of info in seed starting, how much to plant, when to plant, how long till harvest, blah, blah, blah.
Hope you find something in there useful.....I did! Happy Spring, y'all :)