Can you Recommend a good CMS?

[brianoneill]

Hi I was wondering good someone recommend a good php/mysql Content Management System?

My main requirements are:
-It needs to be easy to install and maintain
-It needs to be well supported, I don't want to settle on a system only for the developers to disappear ;-)

I don't need any of the membership stuff you have with nuke, all I want is something that will let you create a maintain a good solid site.

There are so many systems out there that its very hard to pick one.

Has anyone any experience of eZ publish (http://www.ez.no)
Is it any good?

Thanks in advance, I would really appreciate any advice.