Look no further than WordPress. Simple to install (see my post regarding Webmin and Virtualmin) and has a WYSIWYG editor (pronounced “wiz-ee-wig”. What you see is what you get).
Add the following plugins to make life easier…
Disable Comments – Allows administrators to globally disable comments on their site. Comments can be disabled according to post type.
WP Updates Settings – Configure WordPress updates settings through UI (User Interface).