Agree with Kelly Jo and Katja. You need to hire an expert to do your implementation. Marketo is complicated and very flexible, and it's a huge mess if you don't start out with a good foundation. Otherwise it's like buying a Ferrari and not getting your driver's license. Marketo offers implementation services, and there are also Marketo partners that do implementation as well as ongoing consulting. I have used Etumos and Digital Pi and can recommend them both. Yes, it's going to cost you more money up front, but you're going to save a lot of money and headache down the road.
