http://stackoverflow.com/questions/7417 ... n-ckeditor
// adding new fonts to the editor config.contentsCss = 'fonts.css'; // the next line add the new font to the combobox in CKEditor config.font_names = fontname/font1.ttf;'+ ' fontname/font1.eot;' + config.font_names;

Re: loading fonts (eot and ttf) from server
@import url('/ckeditor/css/arial.css');
and within your <fontname>.css
you will have the @font-face loading the eot or ttf file from the server.