Fetching dynamic URLs

Hello there,

I'm trying to do this:

First, fetching user list from a source URL (e.g. http://www.example.com/users.csv) - no problem so far.
Then, fetching user information from different source URLs (e.g. http://www.example.com/users/user1.csv, user2.csv, etc.), i.e. one source URL per user.

I have tried to get this to work with views and also considering issue http://drupal.org/node/714692, but without success.

Any help is appreciated.