We need a PHP or PERL script that will query the Basecamp API, return a list of users and passwords for each project and then create/update user accounts on the Apache FTP server for each project's FTP folder.
I've not worked with Basecamp before, but it should be a very simple project to complete... if you're able to get me the API documentation, I can give you a much clearer idea as to how complex (and how realistic) the pricing is.