[Mediawiki-l] Preventing users from editing Talk pages

[Vernon Thommeret]

Is there a way that I can make it so that only admins/sysops can edit  
Talk pages? I'm slowly trying to edit the Talk/Discussion/Comments  
system so that it works a little more like on a blog. E.g. time  
stamps and signatures would be automatic, each comment would be  
formatted appropriately, and no one person can edit or change all the  
previous comments.

So basically, I want to make it so that if a user tries to access  
"User:Somebody&action=edit", it isn't allowed; but if they access  
"User:Somebody&action=edit&section=new", it is. Is this possible?

Thanks.