Share Data between PostgreSQL and Oracle

Anyone have experience doing this? I would like to hear your tips and experiences.
Here's our situation. We have an Oracle DB on Sun Solaris 8 and a PostgreSQL DB on Linux (RH 7.3) that we need to share data between, specifically from PostgreSQL to Oracle. I want to experiment with Oracle's Generic Connectivity via ODBC connection. The advantage here seems to be DB-to-DB connection, ability to use Oracle SQL and tools, etc. Limitations might be network performance.
An alternative is to produce flat files from PostgreSQL, FTP them to Oracle server, and SQL*Load them into Oracle. Not a real-time solution, but load performance is usually very good with SQL*Loader.

Thoughts?

Best regards,

David B. Wagoner
Database Administrator
Arsenal Digital Solutions
Web: http://www.arsenaldigital.com

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