Hi Robin,
There is no point of dicussion on this Post now, as it has been out of the Track Discussion. But still i am writing.
Its absolutely your decission which solution you select for your Organization, all we can suggest you that every problem has got a Solution and to get a Solution we need Consultancy, workarounds, Discussion, etc. We cannot say this or that. There may be some misunderstanding.
Anyways hope you understand, Thanking you for choosing Symantec.