Hello JonPinball,
if it's possible to apply Protect Computers to the "other" endpoints from the server you want to keep this will consolidate your endpoints. How to redirect Windows endpoints to a new management server describes an alternative method.
Whether you want one or more UNC update locations depends on the available bandwidth, security (e.g. whether SMB/NetBIOS is acceptable over the site links), and reliability and availability of the connections.
lots of stale objects
You can synchronize with AD, it has some advantages but some drawbacks as well. It'd still require some manual housekeeping. But I'd recommend that you first make yourself familiar with the product, it's features (and limitations) and the current installation before considering AD sync.
Apart from the manuals on the Sophos site there's the knowledgebase and this forum. As you're new to Sophos it's probably not that easy to use search effectively - so feel free to post your further questions here.
Christian
Hello JonPinball,
fallback to sophos FTP
the address is likely just Sophos, though the protocol is not FTP but HTTP and furthermore it's a nifty mechanism which does more than just download some files.
how do I tell the end points [...] they need to still update from their local box
Endpoints are organized in groups, all the groups except the special (topmost) Unassigned have policies assigned, one of them is the Updating policy which defines a (required) Primary location (UNC or HTTP), an optional Secondary (UNC, HTTP or the special Sophos address) and an Initial Install Source.
[excursus] creating additional packages to send - while you can create packages for deployment the Protect computers from the console works differently [/excursus]
The Initial Install Source (which is only needed for deployment from the console) defaults to the Primary location, you can optionally specify a different valid UNC path and you have to specify one if the Primary location is HTTP.
Thus: AutoUpdate is installed from the applicable UNC location in the policy, it is configured to update (i.e. perform the rest of the installation) from the Primary, after RMS has connected to the server the complete policy is sent to the endpoint. In other words - the policy applied to the group the endpoint belongs to tells the endpoint where it should update from.
Of course, if you want them to update "locally" at the remote site you must first install an additional SUM there. Don't want to add to your confusion but you should also look into Enterprise Console: configuring message relay computers (and if you intend to use one please see Configure message relay in ver 5.2.2).
Christian