What do I need to do/install to build the type of blog I'm starting?
Submissions: Users would be able to submit to the site without reregistering, per se. One would be asked to supply a user name and a valid e-mail address which would create a user account. Subsequent submissions by the same user would require the same user name/e-mail address combination. Submissions would also require e-mail verification before it is forwarded to me for review.
Comments: Commenting would work the same as submissions except only the first comment would need to be verified to confirm that the e-mail address was valid. Comments would all need to be approved by myself before being posted.
Cookies: Users would be able to select the ability to stay logged in so one's user name and e-mail address would automatically be entered during subsequent visits.