Another great question thanks.
Contrary to what I said yesterday, on reflection these 2012 questions are quite interesting and I'm learning through them.
Just a shame my company, being a bank, is slow to upgrade and I won't see SQL2012 used in anger probably at least until 2017!
ps. Our 2008R2 upgrade (from 2000) is only now being kicked off! Yeesh!
_____________________________________________________________________"The difficult tasks we do immediately, the impossible takes a little longer"