From what I've read, you pay the per minute charge only while connected to the Internet. So you can compose emails, etc. "off-line" on Oceania's PCs at no charge. Besides the computer room they also have PCs in the Library which is usually a really nice quiet space. The PCs are also connected to printers and printing is free.
We're on the Regatta at the end of September, but sailed on R8 a couple of years ago.
Are you doing a story on Oceania soon?