Advice on contingency plan for DAS array with separate local WAL drives

Recently migrated to a shiny new 8.4.4 postgres instance....data stored on attached storage array.  Transaction logs
storedon 2 local mirrored drives (local to the database server itself) for best performance. 

While we are replicating (using slony) to our DR site, our first-choice plan (in the event of an issue simply with the
databaseserver itself) was to disconnect the SAS cables from it (connected to the DAS) and connect them to a 'similar'
boxwe have on standby.  With the WAL logs physically on the drives of the original database server, this obviously
becomesan issue.   

What is recommended in terms of prep/switchover in this instance?  Should we be rsyncing or using built-in wal-log
shippingof these transaction logs to our stand-by server?  Simply pop out these drives and hand-move them to the
standby-server?(assuming they are not the issue in the first place)    

Any thoughts would be appreciated.