Never dawned on me that a ROM with such a good rep would not have some form of SD app management...
I took your advice SURoot and opted for a script (Data2SD)
All works a charm now, cheers SURoot. Loving CM7.
One aspect I noticed though... after a phone restart, you must leave the phone for a healthy period of time to 'settle' down. Otherwise accessing certain apps (such as email in my case) too early will bring a succession of app crashes, requiring another restart.