OK, been going through the update manager docs and noticed that the only upgrade baseline in vcenter 4 is for vSphere 4 Host? Even when I try to create a custom baseline, I'm only given the option for ESX/ESXi Release 4. Now what if I have several ESX 3.5 update 2 Hosts in this environment and I want to update them to 3.5 "update 5" and apply all recent patches? Can this be done using Update Manager? If so, how? If not, how do I do it for v3.5?