Django admin speed issues

Rather than moderation I decided to go for two posts in a day - huzzah.
Recently I experienced the Django admin interface grind to a halt seemingly inexplicably. After a bit of tailing the access.log I realised the problem was two fold:

1. ADMIN_MEDIA within settings.py was not configured to the correct location.
2. 404’s being issued when attempting to access ‘media/css/null’

A quick Google it appears the ‘media/css/null’ problem is a hack in django/contrib/admin/media/css/base.css covered within ticket #2086

Hopefully it should save a few people scratching their heads in future.