I wrote a
document (
https://openacs.org/new-file-storage/one-file?file_id=273) that describes just what you propose. If you have questions or something is unclear, let me know.
I'd run Oracle on a supported platform, which rules out Debian as far as Linux is concerned. Under Linux, your real options are RedHat and SuSE. As much as I like SuSE, their recent joining of UnitedLinux marks the beginning of the end for them, IMHO. That means I'd use RedHat.
