There is way too much information available to fit it all here...so here are a couple links to get you started!
For some great weight loss tips - see that forum as well as search 'weight loss" for some great articles and low cal recipes :)
I think it's great that you are being so proactive about it. Check out the Brighton Baby book I reference in that first link - it's gigantic, but very thorough and helpful. Keep us posted !!