Your filesystem of choice?
We use XFS at work (and I work for a major London-based film and television post-production/visual effects facility) as it's an excellent journalling system which was originally introduced to us through SGI equipment (which has now gradually been phased out of the production side - and is only really used for the Infernos). XFS is pretty tough and we've not had many problems using it.
Regards,
Martyn