Ivo Beerens just published a new version of his Powershell Healthcheck script. The script will report the following in a nicely formatted html file:

• VMware ESX server Hardware and version
• VMware vCenter version
• Cluster information
• VMware statistics
• Active Snapshots
• CDROMs connected to VMs
• Floppy drives connected to VMs
• Datastores Information such as free space
• RDM information
• VM information such as VMware tools version,  processor and memory limits
• VM’s and there datastore
• VMware timesync enabled
• Percentage disk space used inside the VM
• VC error logs last 5 days

Go to Ivo’s website for the download of the script and the source blog post. I use this script personally just to keep track of changes and get a quick overview of the current situation of an environment.