Per Steve:
> The reason I want the
>500GB online is for offsite backup, to protect against losing files in a
>disaster.

When I dabbled in offsite backup via broadband (Fios - *maybe*
4mb/sec...) for my 60-70 gigs of data, I found data transfer
rates tb the limiting factor. My little pipeline just wasn't
enough to do the first backup - or, I suspect, even incrementals
in any reasonable amount of clock time.
--
PeteCresswell