Dragon's age does run in linux. I am playing it on wine 1.1.32 in Ubuntu 9.10. When it hangs at the end of installation you have to quit out and download the nvidia physx driver's from their site and install them first. I have played all the way through the mage tower segment.
It doesn't run perfectly though, cinematics show blank screen (even though audio works) and all visual effects had to be turned to the lowest setting so it didn't wonk out. Otherwise it runs great on linux. (Note, in-game cutscenes work fine, cinematic ones don't.)