Clone virtual machine

Hello,

Current environment:

Vcenter 4.1

ESXi 4.1

What are the steps to independently clone a production virtual machine in order to ensure production virtual machine is not affected (SID, mac address , netbios name, FQDN etc)

Two virtual machine are Windows 2003 and windwos 2008 R2 that need to be cloned.

My understanding is I should use customize virtual machines to avoid the above mentioned duplicates

Thanks