Hi, Joel, my name is Richard Harrison and I am the Product Manager for Replication Director (RD). RD was designed for exactly the sort of environment you describe. Your described use case is supported by RD.
The point about NBU 7.5 vs. 7.6 is relevant: in 7.5 the supported environments are NetApp NAS and file system data. In 7.6 RD adds support for VMware on NFS datastores, for Exchange and SQL Server in VMware, for non-virtualized Oracle servers connected to NAS via NFS (db files live on NAS) in addition to some other features including SLP Windows as mentioned by Anshu.
If you have more questions, feel free to get help from your account team, or if that isn't your preference, contact me directly and I will get you whatever help you require.
Thanks!
Richard Harrison