Does someone know of a front end plugin for document storage and support?

I'm trying to keep my site users from any admin type areas on my site, but I also want to offer two features I haven't seemed to find good plug ins for:
Document storage- I want to give my users the ability to upload word files and store them on my site, from the front end
Support- I want my users to be able to submit support tickets to us through our site as well from the front end

I'd appreciate the recommendations. Thanks!