I would never host at one isp, no matter how good there is a chance of a catastropic failure or natural disaster. So I host about 50% at ThePlanet (texas) and 50% at Candid (florida). Each regional server pool gets hourly synched to the other side of the country, so I am ready for anything. On top of that I push weekly backups to a third location (New Jersey).
Sleep like a baby.
