journalling is there to help provide a safe guard against data loss and corruption. using HFS+ without the journal can be risky - I have experienced problems personally from this - any freeze up, reboot without proper unmounting of the drive, etc and you are in trouble. While I haven't tried NTFS is seems to be the most compatible between OS's, meets your requirements for file size of 80 GB's:

https://secure.wikimedia.org/wikipedia/en/wiki/Comparison_of_file_systems

A FREE driver is required:

https://secure.wikimedia.org/wikipedia/en/wiki/NTFS-3G (this driver seems well tested and stable)

Can anyone provide any information on the Nexus One as it pertains to this article?