Question About VMWare GO And Hypervisor

Hello!
So i'm getting my feet wet in Virtualization and testing out VMWare GO with the free ESXI Hypervisor.
I'm currently testing the hypverisor a few VM's on a desktop (lol) and just recently purchased a actual server for virtualization but would still like to use VMWare GO till i feel comfortable enough (becoming certified) to move into the full Vsphere Product.
My Question is; how can I use VMWare GO to migrate the Hypervisor from the Desktop to the new Server? I'm assuming this would normally be done with VCenter but i would have to purchase that =P
So i'm getting my feet wet in Virtualization and testing out VMWare GO with the free ESXI Hypervisor.
I'm currently testing the hypverisor a few VM's on a desktop (lol) and just recently purchased a actual server for virtualization but would still like to use VMWare GO till i feel comfortable enough (becoming certified) to move into the full Vsphere Product.
My Question is; how can I use VMWare GO to migrate the Hypervisor from the Desktop to the new Server? I'm assuming this would normally be done with VCenter but i would have to purchase that =P
Comments
"Simplify, then add lightness" -Colin Chapman
Ah, ok. Don't need to create new VMs on a ESXi host. Just file transfer/ftp the VM folders from old ESXi datastore to new ESXi datastore (assuming no SAN), browse the new ESXi datastore, select the .vmdk file, right click join inventory. VMs have to be powered off.
"Simplify, then add lightness" -Colin Chapman
Ya this seems to be the route i'm going to have to go with. Hopefully vCenter allows the transfer of ESXI. Haven't really tried that product yet.
Only if you need to do vMotion (i.e. move VMs without downtime)... otherwise you can do as dave330i suggested... power off all your VMs and move them over to the data store on the new server.