&gt; At the risk of sounding too much like an AWS fanboy we are actually looking at scrapping it all and just bringing everything in-house running on our own physical boxes with some type of hypervisor on top.<p>We have done just that, with Opennebula (qemu,kvm; networking built on top of openvswitch and storage from distributed iSCSI NAS appliances). It&#x27;s a perfect middle ground. All the easy provisioning niceness, less than half the price of AWS.