Learned scholars, I have a Mac Pro that I'm dedicating to experimenting with password hacking / auditing. I understand that ATI cards are best suited to this task. I'm hoping you can help me make an informed decision on a best bang for the buck purchase. Specs of the machine: - 3,1 - 16GB - 256GB SSD - Radeon 5770 I've taken into consideration extra power. The 5770 will remain in the machine for boot screens, etc. I'm not afraid of flashing a PC card, but don't see any compelling need since I'm keeping the 5770. So what do you guys think? Would probably like to spend $300 tops. Thanks in advance!