Picture sharing website

Hello.

I've been running a genre website where people can register, get their own album and upload their pics. I've been running this with Drupal and Gallery2.

This combination has been too advanced for the users who has had problems uploading their pictures. Since wordpress is generally very user friendly I'm now looking for a wordpress based solution.

Does anyone have any tips on how to build a site like that on wordpress? Plugins etc. I'm not sure if a multisite photoblog set-up is the best option but that might be the case...

If anyone know some other software to use that would be cool too. I've looked at alot of different softwares but they all have flaws. I'm seriously considering a drupal setup with cck and views.