I’ve just come across a blog post from Virtual Strategy and he lists quite a few awesome sounding scripts in this post, you can read it here. The ones that really catch my eye are the ones that generate documentation for the admin, quite useful when you have to quickly spit out reports for clients.
Power Documenter (http://communities.vmware.com/docs/DOC-7473)
Report into Word (http://communities.vmware.com/docs/DOC-7070)
And then this one is another that really caught my eye, Setting the Video Acceleration from Powershell (http://www.peetersonline.nl/index.php/vmware/setting-video-hardware-acceleration-level/)