Jeff, Thank you very much for your response.

But, OEM connects to the DB based on the TNS name and if they are on different servers, it wouldn't be a problem. correct?

I totally agree with you having problem on having two DBs on the same machine with the same name( I experienced problems when I was doing some testing).

Do you aware of anyother problems or anything which mandates different DB_NAME for each DB in the network ?

Thank you.