Hello Steven,

  SMB> I need to buy a large external hard drive that needs to work
     > with both NetBSD 3.0.1 and Linux, read-write.  What are good
     > choices for the file system?

This will be an unpopular choice and may not suit your application,
but if you're just using it to move data sets between sites or
machines, you could consider tar.  I have found this to work across
platforms, even those that have different partitioning schemes.

- Andy Ball