import .ovf vm into vmware fusion on mac?

Does anyone have experience importing vms in .ovf format into VMware Fusion (4.1.3)? I have a redhat linux image I would like to run through VMware Fusion that is installed on a Mac (Darwin).

It appears the .ovf needs to be converted to .vmx and Fusion does not do this by default.

I'm finding a tool called ovftool on the VMware site, that can be used to convert .ovf to .vmx, but not a lot of details on its use or installation.