I want a wiki where I can do the following;

- Outline a process
- Track a client's progress in that process (I'm envisioning something like 'complete' buttons for each step in the process that, when confirmed, update the main topic page on the status of the project)
- Easily edited forms that have email or RSS subscriptions (subscribers get an update when that form is updated - preferably they even get the data that is in the form)

Any suggestions?