We are looking to create a force.com app for my company but we have one very important requirement.  We have projects that are related to tasks.  Those two objects each contain data that is needed to fill out a PDF form. 

We have data on the following objects that would be used to automatically fill out the form:

Accounts

Contacts

Projects (Custom Object)

Tasks (Custom Object)

Each of the above are linked in VF.

Any ideas on how to do this?