I currently have an implementation running with NFS datastores on NetApp Filers.
So this leaves two choices for Exchange 2007 mailbox server with a 500GB database:
1) Just Vitualise to the NFS datastores
2) Create LUNS and map iSCSI from within the VM to the LUNs thus allowing the use of snapdrive and snapdrive for exchange. This would have to use the same vSwitch as the NFS vmkernal port do to number of NICs on the hosts and the NetAppfilers
Which way would you go and why?