Editable content area for user with restricted access

I'm building a blog for a client and they need to be able to edit a paragraph of text in the sidebar. I currently have it setup as a 'Better Text' widget which I can quickly edit for them.

I don't want to give them access to the widgets, etc but they want to be able to edit it themselves. Is there an easy way to add a custom write panel kind-of-thing that's independent of the post & page structure?

I know I could create a separate post cate开发者_运维技巧gory and pull the particular post into the template but i'm looking for something different.

Anyone got any ideas? thanks in advance, Greg.

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Why not just add a a custom field for that specific page, and let them have a login which allows them to edit that content?

The point of using a CMS, is to allow the customer to edit the content themselves.