Printing Security, ways to achieve in OEBS ?

Oracle e-Business does not seem to come with any printing security. You can force a request to use a specific printer, but you cannot prevent a user from printing to a printer you don't want them to. In today's data conscious environments, it's important to be able to say "User at site 1, cannot print to a printer at site 2". This could lead to secure information (like P45's) being printed out somewhere they should not..
Has anyone encountered this issue before, and come up with a solution ? I see a few possibilities:

1 - Replace the printing command in the print driver (e.g. lpr in unix) with a shell script which performs a user look-up and only if conditions are met does it print