Pre-defined template for posts

I’ve got users who will be entering the same information in every post, and who aren’t very familiar with HTML. They will be using the WYSIWYG editor, but I’d like to save them the trouble of formatting each post. Is there any way I can hack the post entry form (in WP 2.0) to take multiple blocks of input (including pointers to graphics) and then format those according to a pre-defined template?