We run server montoring, and have never had an outage. The Xen thing works well. Support is quick and expert. Absolutely had it with some of the bigger names that let us down. The last being Aplus and Lunar Pages. These guys are 'nix heads, know what they are doing and actually really have 100% uptime. Fab. Live support is not 24x7 and some idea using a shell would be useful.