Move yourself into the cloud and let someone else deal with it. Seriously.

I'm a big fan of outsourcing anything you arent 'great' at. In this case, its running firewalls. Unless of course your app is something related to server maintenance or firewalls or security, etc.

Most software companies really shouldnt try to deal with this stuff -- I had to learn the hard way. You should only spend your time on your applications, not anything else that doesnt directly benefit you. You can get lost in the maintenance.