Control Management / prices separate

I need a CMS for a site with four languages. That is not so hard, but: there are prices (also in the textarea's) on the website and it must -of course- be possible to change the prices once and not four times. The security-part is done. What I want is the following: - a form (for each language one, if possible just one) for changing the TEXT on the pages. - on the form: a simple dropdownmenu with the names of the pages. On change: fill the form, so the text can be edited. - a button submit for changing the text :-) - a form for adding prices (description, price) - errors are nessacary: empty / non-character fields are -of course- forbidden - text and prices should be in a MySQL database - please a very simple / no layout, I will do it myself A form for CHANGING the prices is ready, may be it can be used. The prices are in a table (id, description, price) I'm curious!