This is a link for epicurious.com for a video on baking/decorating your own wedding cake. It is a nice simple wedding cake, a pretty good video and might help someone who is thinking about doing it yourself. You are, however, having to watch a little advertising on investing money...not too bad!

http://www.epicurious.com/articlesguides/holidays/weddings/cake

This shows doweling a three tier cake, which would help with any stacking.