For my wedding, my friend made a truly amazing cake. It was a White Chocolate and Lemon cake, from Bon Appetit recipe. http://www.epicurious.com/recipes/recipe_views/views/108257
If you like lemon, this is an incredible cake. I can honestly admit it was the best cake, not just wedding cake but best CAKE, I have ever had in my life. In fact, it's been over a year since the wedding and my family is till talking about how great the cake was!
I admit I don't really know how complicated it was to make. My friend used to work in a bakery, so she may have some special skills that helped her. She didn't decorate it like the picture online, just used fresh flowers which were really beautiful, but obviously you could decorate however you wanted.