How to create standard template ?
Take your "Golden" VM that you wish to use as a template and right click and Convert to Template, or Clone to Template. Then when you deploy the template make sure you run the Customization Wizard to sys prep it and change any settings you wish.
First requirement is you need to have vCenter server installed.
Creation of template is very easy : Either you can use VI client or Web client. If you are dealing with vCenter server 5.5, it is better to go for web client.
Just follow below resources :
vSphere Documentation Center
VMware vSphere 5.1
VMware Template Creation: Make VMware Templates in vCenter Server
Let me know if you need any help