Host-Tracker.com is also good, with monitoring from 60 + locations, around the world.
If you want monitoring + reboot, I would suggest PSM (
www.platinumservermanagement.com) , it costs just $10 a month, & they reboot your server if it goes down.
If you want full management, including monitoring, again go with PSM, it is just $29/month (& $19/month for more servers) , I use them myself.
Ishan