Migrating ESX to ESXi
Alan Renouf is a community peer for VMware PowerCLI, Virtu-Al.Net. In 2009, he was named a vEXPERT by VMware. Alan's main focus is to teach and help other VMware admins automate their VMware infrastructures and make their lives easier through automation.
www.virtu-al.net.
Just released on the VMware Flings site is a fling which is designed to help when you make the move from ESX to ESXi, this tool will help you check hardware software and also that there are no lingering scripts or locally stored VMs etc.
A great tool to download and run against your environment to ensure you have caught everything before the move to the next version of ESXi.
From the official description:

Download
Make sure you visit the fling site here and use this fling against your environment:
- xtravirt's blog
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