Hi, I have a Mac Pro 3,1 still using its original Geforce 8800GT. The card is very very noisy when gaming. I would like to cheaply upgrade to a less noisy card that is also more powerful than my current one. The card should work out of the box without any flashing. I was hoping for something less than 70$. The cheaper the better. I want to do gaming mostly in OS X and i don't care if the Boot Camp screen doesn't appear. I do not have a preference regarding ATI or NVidia cards, whatever works best. What can you recommend? Does such a card even exist?