No no Roy – you got me all wrong 🙂
I don’t think it’s Adobe’s fault, nor is it Apple’s fault – nor the end user.
It’s just a bad situation in which you have to work the best you can.
Nobody should be criticised over having to use any of the above combinations because nobody has chosen explicitly to use AE7 on an Intel.
Sadly AE7 is pretty rubbish even on a G5…
If you exclusively use AE then a PC is the only way to go – or at least it has been for the last few years.