Ok. I was in TechEd 2008 in Eilat, Israel 2 weeks ago. It was highly informational. The new technologies that were presented there (i.e. Server 2008, Hyper-V etc. etc. etc.) are something that is definitely worthwhile looking into.
At the moment, what I have “on my plate” in my day to day job is and upgrade from VI3 to 3.5. That includes all ESX hosts and the virtual center.
I have successfully installed VMware Server 2.0 Beta 2 on my my home desktop, (Windows XP - which from my knowledge is not really supported) but from what I can see the product will fit very nicely into all other VMware products if they drop the WebUI (which no-one really likes) and go for management through a client.