Page template for custom main tabs

Hi all,
I am trying to customize the basic theme. I have many pages, that will not get posts or comments, but the single wysiwyg is not giving me enough freedom to template the content.

I know I can just add the html but I want to have the basic html skelton in my template because we’re using big tabs on the main part of the page and the content is not dynamic (like the sidebar tabs), but inside each tab I’ll need to be able to update and edit the content.

Is there a way in the admin/post template that I can call a few separate editor fields to show up in the admin of that page? Other templating I’ve used before going to WP would be just leaving a field %%large_text%% for a html wysiwyg editor, but I don’t know and could not find the code for WP (neither in codex nor forum).

I used the custom fields already, but it’s not giving me enough html options. I use the ‘custom field template’ plugin which allows ‘tinyMCE’ but it’s not giving me options such as making a text a header, or floating an image, or inserting a hr.

any ideas?
thanks
Anne