So, I'm trying an experiment. tell me what you have (sites,servers,gear,vpn,whatever) and we'll make a plan for monitoring it.
If your needs are super simple; there are services we can hook you up with for free. If you have slightly more advanced needs, I can add you to my monitoring box. If you're needs are significantly more advanced, I can setup a dedicated box (or boxes) for you.
What can be monitored? Disk space usage, CPU utilization, backup validity, 100+ dns health checks, site exercise checks, spam blacklist checks, log conditions, call queues, emails can be sent/received, network gear, sudden abnormalities, electrical power states, voltage / temperature measurements, and pretty much anything you can think of.
Or, maybe you just need something to watch your watchers, or to serve as a secondary check. Or whatever.
I only ask that you pay what it's worth. Maybe you just pay me for my time (my rate is $150/hr) to implement, or maybe you just pay me $10/check/mo, or maybe you pay me nothing because you don't want to or can't. It's up to you.
Email me r.monitoringdude@ruru.name if you're interested.