Yeah cleaned it with the vacuum and air compressor.  The hair balls that came out of that omg.  I put something on top so she stops going there.   
when I finish my basement and server room think I'll move it to a rackmount case and run VGA/USB/etc cables down.  Will be in a more controlled environment.  I get lot of dust in my house I find + the cat hair.  And she's short haired, imagine that.