Where Would You Outsource Your Datacenter?

An anonymous reader asks: "I want to outsource everything in our rackspace to reputable online providers. After wasting valuable time every day on mundane problems and upgrades, I'm convinced it's cheaper to pay monthly than maintain our hardware and staff time. So I ask you, Slashdot: who would you turn to for reliable and secure outsourcing of a VPN server, Exchange server, online backup, and webserver hosting?"