I can only offer anecdotal evidence:
in 2006/early 2007 we bought seven MacPros for video editing. They pretty much ran 24hrs a day, either editing or compressing video, for three years with nary a problem.
These were the 2x 2.66 GHz (5150) Dual-core Intel Xeon MacPros.
I'd avoid second hand iMacs - they have a shorter working life and are much harder to repair if they develop a problem
I can only offer anecdotal evidence:
in 2006/early 2007 we bought seven MacPros for video editing. They pretty much ran 24hrs a day, either editing or compressing video, for three years with nary a problem.
These were the 2x 2.66 GHz (5150) Dual-core Intel Xeon MacPros.
I'd avoid second hand iMacs - they have a shorter working life and are much harder to repair if they develop a problem