why not try with Perl, its simple, vSphere SDK avail at free , We can extract values from csv files and send them to vSphere API.
http://www.vmware.com/support/developer/viperltoolkit/index.html
here they gave how to connect to vsphere, we can use web services calls to connect to vsphere. all the need is to open https port.
We can play left and right with vSphere using perl.