Outlook integration is not real easy.
Some simple ideas would be to have an email submit to you and then you could drag the email onto your calendar. You can setup the email submit to send you the info you care about most.
More sophisticated would be to create a workflow or have a backend database that collects the data and then you could have notifications from the data, with reporting etc.
It all depends on how cool you want it. If you are just trying to keep from missing deadlines or you want to integrate the form into your process. I have worked on similar forms that will create the AD account and many of the other components automatically for you so as an admin you have a lot of it done via HR or whomever's input.