Wow, I just spent ~4 hrs playing AoC with just 1 crash in the very beginning and smooth gameplay otherwise with most settings on high. Only now, that I entered the city did I notice a little bit of the striping I know so well from other games.
The bad news is that I did all of this as a test for The Secret World and so can't just give a simple recipe for how to install and run. I also didn't expect it to run and so I just played around with installations in that bottle without taking proper notes on what exactly I did but if I got it to work, it will work on other Macs too, I am certain.