centralized storage of sensitive data

[reflect ocean <reflect.ocean () GMAIL COM>]

We are planning to implement a solution to storage sensitive data
which must include encryption and auditory of each access.Storage of
information should be centralized and transfer of data across network
also should be encryted.
I've reviewed some solutions from McAfee and Sophos.If anyone has any
recommendation or any other consideration to implement , please let me
know.

Thanks