"Over the past month I have installed and tested almost every single tool on my previous blog post of A List of FREE VMware vSphere Tools." -Kendrick Coleman
"Finally, and somewhat overdue, here is the vReference card updated for vSphere 4.1. At first glance it looks the same, but there was quite a few little additions here and there."
"This table contains a list of systems, motherboards, storage controllers and network cards that have been tested and found to work with ESX 4.x or ESXi 4.x Installable. Please check out the source column for a system you are considering using as some systems will include special steps to enable ESX / ESXi to run on that system or have other issues to overcome. None of these systems are supported by VMWare for running ESX."
"A physical server needs drivers to talk to it's hardware. A virtualized server, in essence, does the same thing. VMware presents new hardware to allow the virtual machine to talk to it's hypervisor. Think of the driver issue in a P2V migration like removing a video card and installing a new one. The drivers and hidden hardware are still there just in case you feel like popping the video card back in. A P2V will still have all of the old hardware in the virtual machine. Don't forget about services that physical servers used, namely HP server management services."