@VKZ
If you have VMware Workstation - you can "nest" the ESXi server and vCenter. This is what I did to go over the work I performed during my week of training.
Here's an example you can use to help you create the environment.
http://www.virtuallyghetto.com/2012/08/how-to-enable-nested-esxi-other.html
There are others out there - but this should help in setting it up.
I hope this helps.