[themes] how to insert code into WYSIWYG

Hi, does anyone know of a really nice <code> insertion tool? I'm having issues with the drupal module: codeFilter, in that it strips ">" and "<" from any place where I put them inside of <code></code> wrappers, and it also does all sorts of crazy font coloring to <?php code and over-rules my <code> wrapper.. both of which make styling it really challenging... I'm looking for something that: WORKS and allows me to easily style it just the way I like it... Thanks! Seb.