Easier DNS management

If you manage a small network, it's not too bad. But it can start to get confusing real fast when the network starts to grow. You could run your own DNS server, but I rather rely on more reliable ones, AAISPs'.

Possible Solution:
Something a little more dynamic; ability to filter/sort by type, name, IP, etc.

Overview before actually committing changes maybe?

Faster access to other domains managed; drop-down list, sub-menu or something?