Veganism???

Alrighty folks. I'm taking the plunge. Tomorrow morning all of our *edible* animal products (and we have a decent amount in the fridge/freezer) are being hauled over to my very grateful mother. Grateful, because she houses my 23 year old brother, who eats like a horse... The kids and I are having our farewell meal of hotdogs (organic grass fed beef-lol) and M&M's:-) Well, that might be a lie. I might use up some leftover chicken with dinner (again, organic grass fed... we do eat healthy already!)  So, tomorrow will have us out and shopping at WAY too many stores, trying to figure this all out. Any tips for a newbie vegan???