Multple stylesheets for textarea

Today I started working with CKEditor (3.x RC) and noticed that I cannot add multiple (two) stylesheets to style the textarea in the editor. Since this stylesheets are dynamic (choosen from many) I cannot simple put the code in one stylesheet and load that one. My question therefor is: is it somehow possible to add two stylesheets to style the editor in either the 3.x (very very much preferred) or the 2.x version of the editor? E.g.:

<script type='text/javascript'>
   CKEDITOR.replace('theEditorId', {
      skin : 'kama',
      contentsCss : ['templates/css/default.css', 'templates/ + cTpl.id + '/style/main.css']
      })
</script>

Currently that is the only thing stopping me from integrating the editor (the rest is great!). Thank in advance for any help.