Second internal for data storage?

I have a new internal 320 GB (SATA drive running on Sonnet card), and the old internal ATA 120 GB.
I plan to have the System & all apps on the 320. I could put data on either.
Would there be an advantage to putting data on the other drive? Could it speed work flow?
Thanks,
James

+"Would it be faster to have the app & doc on different drives?"+
It may or may not be faster but it would absolutely be safer. Keeping your documents on a separate drive protects them from pretty much everything except a failure of the drive itself. To protect against that, a third drive as a redundant backup is a good idea. I run four drives in my MP. The system, a system backup, a data drive and a backup for that. Then both are backed up redundantly to two external eSATA drives.

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Second internal for data storage?

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