Hi David,
A new management class/copygroup whose destination points to the second pool is 
key, to state the obvious.

One way to do this is to create a second data center node in a second policy 
domain with its default management class destination pointing to the second 
storage pool.  Grant proxy from the new data center node to the second set of 
data movers. Voila.

There may be a simpler way to do this with include statements on the existing 
data center/data mover nodes, but I'm not sure how.

Keith