If you haven't gotten started yet, you can find some greenhouse plans here: http://www.bluegrassgardens.com/how_to_build_a_greenhouse_article001.html

Pretty good assortment of styles and one for every budget. If you're wanting more detailed greenhouse plans, you're probably going to have to buy those, unless someone here has some handy that they don't mind sharing. Wishing you luck with your greenhouse! Maybe share some pictures here when you get it built :)

Crazy is as crazy does....