Just thought I'd post that I am so extremely impressed with what the people involved in the drupal project have done. You DO need to have experience with linux, mysql, and apache in order to use their software, but they've really got their process down. It's extremely easy to find help about how to do upgrades and installs. Everything is documented to the point where you almost (notice I said *almost*) don't need to know how to use linux, mysql, and apache. From messages on their forums, it looks as though the installation/upgrade process is going to get even smoother soon.
These guys are awesome :)