Best Form & Upload Solution?

Hey guys,

I’m wondering if someone can advise me on the best plugin or approach to setting up the following.

1) A User is presented with a form where they fill out details in a number of areas. They can upload several files to this as well

2) Server side I can add a status and a download link for the file(s) I’ve created for them from this days that displays on this page.

2) They may be able to log in and edit the form at a later date, at which time I’ll be able to make additional changes at my end ad infinitum

Does this make sense? Basically a client login where they can specify a brief, submit files and a place where I can upload the work and share the status with them

Is there a good existing plugin for this?

Thank you
Lachlan