For the most part yes it is that simple. However, you might need a referral for the developer points. Also ask lots of questions and understand how the developer points work. You might (or should) be able to get the 2007 allotment of points and not have to pay the maint on them. We bought site unseen (being we didn't take the tour but have been to WDW), I did lots of research on these forums and a few other places I could find info on, then called a friends sales rep (she refereed us) and he was really good at explaining everything and answering my questions over the phone. Don't be affraid to ask the questions after all it is not cheap and you deserve to be informed.
I feel I had a very solid understanding of how everything works before I signed. I didn't get caught up on trading to other resorts or even renting beyond the basics. My decision was based on wanting to go to WDW every year or at least every other plus the incentives were nice. From searching the forums people who seem to have some buyer remorse didn't understand how the developer points worked and/or the reservation process.