Thats a nice idea that will not work, as I assume the reason for sending the SMS alert is to be able to leave the house and not have to look at a screen all the time.
I would still suggest looking into a Nagios like solution that deals with all the monitoring, shows the cool webpage and has the ability to contact you via SMS, email or both. It is a very mature tool that has long since dealt with this and many other problems you will face when monitoring a system or systems. Pretty much every single major soft and hardware solution has modules available to monitor the solutions specifics which will make your life so much easier. Writing your own monitoring solution is really simple and should allow you to save a lot of time as all you need to do is let the central system know about your findings all alerting is dealth with by the central system so no worries there