[Loopy C]

Sorry I searched but did not see anything specific to my question.

I have a new Mac Pro (Nehalem) and in planning it's back-up strategy want to know if there is any issues/downside to having a 'clone' on the internal bus (in my case it would be a second WD 1 Tb drive in bay 2 cloning the WD 1 Tb system disk in bay 1).

I suppose all my 'Open With' (Services') will be duplicated in the menus? Is a good strategy to have it internal or better to go external? This is a home system and in the past on my laptop I always did 'external Firewire' for obvious reasons...just want to check before making any drive (and secondary Super Duper license) purchases.

Thanks in advance.