VMWare ESX4 VM Backup Script

Hello Community,

first of all i am New here! So Hello to Everyone!

I have a Simple Question, how can i Manage it to get the following Things done by the ESX Server itself:

Power Down a Machine (or more than one)

Save the entire Folder of each Machine to a USB Harddrive (or Network Share (UNC Path))

After that Power on the Machine(s)

-> Do that all again and first DELETE Than Backup again so that all Files are new!

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I Want to make this Work on a ESX 4.0 with the Free License aquired by VMware, if anybody can Tell me how to make This it would be Great, that could help us a Lot backing up the Servers!

Thanks to Everybody! 

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