With all the recent problems I have been trying to come up with a solution to my site being down. In the past I have used Zoneedit DNS andd their failover service. But Dreamhost requires that you use their DNS servers.
So I think that Dreamhost themselves should have a failover monitoring service where if a website is unreachable for a period of time then the IP is dropped and the request sent over to the next ip.
The reason I am saying this is because I don't want to move my websites to other hosting when something happens. But I would like be able to use one of the other hosting services that I have to backup my Dreamhost accounts.
If this service was provided for a reasonable monthly fee I would definately purchase it.
Or Dreamhost could make it easier to use off-network DNS servers for their hosting accounts so that you could use another failover service like Zoneedit.