Hello moneymm!
VMware vSphere Hypervisor ESXi (5.0) is free.
vSphere Client is free also.
this is the link to download the free hypervisor: https://my.vmware.com/web/vmware/info/slug/datacenter_cloud_infrastructure/vmware_vsphere_hypervisor...
once you install it then you use your browser to connect to the host and download the vSphere client from it!
:smileyplain: