Acronis True Image / Noron Ghost equivalent for Mac
There are a number of utilities that will capture a Mac's disk image from a live system. CCC is one of them and works well, SuperDuper is another which also works well. But to get many of the features that would be equivalent to Ghost or Acronis... I am not sure as my needs at work are pretty simple as I only have a few Macs.

I hear that FileWave has a solution but I have no experience with it, but it might be worth investigating.

The folks at afp548.com have an active community of Mac SysAdmins and they cover a number of workflows that allow you to image large numbers of Macs in similar ways as Ghost and Acronis. It might be worth your while to check that out.