How to build as web base File Server

[satimis]

Hi folks,

Ubuntu 7.04 server amd64
apache2-2.2.3
postfix-2.3.8
mysql Ver 14.12
SquirrelMail version 1.4.11

I have a running Mail Server. I need to make it as a file server, in addition, allowing users who have accounts (Linux/shell) on the Mail Server to upload/download their files via browser on the Mail Server for storage.

Webmin and Usermin are also running on the Mail Server. Users can send/receive webmails direct on any PC. They can change their passwords either direct on SquirrelMail or via Usermin.

At the beginning I was thinking whether I can make use Usermin allowing users to upload/download files to/from the Mail Server. Therefore they can access them on any PC world-wide, borderless. While googling around on Internet I found;

HFS ~ Http File Server
http://www.rejetto.com/hfs/?f=dl
http://www.rejetto.com/

I expect folks on the forum who have experience on this project shed me some light. OR are there better solutions?

TIA

B.R.
satimis