I just picked up a new customer with a ESXi 4 server with 1 VM on it running SBS 2003. I don’t really have experience with VM’s other than playing with it on a host OS. I've been looking around and there are bunch of options to backup ESXi VMware. Can someone recommend a product that they use. I would like to be able to backup a VM image daily to an external USB drive or NAS so that I can restore it with minimal downtime. Ideally I would like to be able to backup the VM and all data within the OS. Can this be done or do you have a better solution for a backup?