VMTS have released a GUI patching tool that downloads all the latest ESX patches from the tinternet for you. I then checks your ESX server for missing patches and applies the ones you need.

At time of writing it was still a little rough around the edges but it gets better with every release. Its worth a look while you wait for vmware to include patch management in their next release.

http://www.vmts.net/VMTSPatchManager.htm

Also have a look at the new Veeam reporter tool which rocks

http://www.veeam.com/veeam_reporter.asp

while the veeam config tool is pretty lame it does have one good feature it sets the NTP time servers for you.

http://www.veeam.com/veeam_configurator.asp