The server console DB details screen should have an optional NT account field when NT authentication is enabled. Once set, the application pool, services, server console and patch tool (and anything else, like the query tool) should all be using this account.
This is useful when the customer wants to login to the server console with a network account other than the account of whoever is logged into the server.
Currently the Username and password fields are greyed out when DB NT Authentication is ticked.
This has now been reviewed by the Product Management Team and will monitor the number of votes this suggestion gets with other customers.