The Association of University Teachers  http://www.aut.org.uk/ has called a national strike for 25th February. The National Union of Students is also calling for a day of action.
You may have seen its 'barcode' campaign:
 http://www.nusonline.co.uk/subsites/stopfeesnow/toolkit/article.php?nusonline=&articleid=268850

A nice try, but here's a better image to use on those day of action posters...