The majority of the websites I maintain are hosted at MediaTemple in LA. They came recommended by Komra at Design4Results, answer the phone, and are big enough to give me a secure feeling. In September they had some problems with their clustered web hosting service, called the Grid service. Some latency, duplicate emails, and the resolution process lingered on a bit. The Grid has never seemed rock-solid, and so they're on a shorter leash with me.