Hi, I am about to order the new Mac Pro 6 core, and will be mostly using CS5 Design programs including Photoshop, InDesign and Illustrator. No gaming. I have a few questions regarding Radeon HD 5870 versus the 5770... 1. Does CS5 (especially photoshop) make much use of graphics cards in general, and will the 5870 make a big difference in speed over the 5770? 2. Is the 5870 going to make things louder? (i have a G5 now and it's like a jet engine, so I'm hoping for a quieter machine) 3. Will the 5870 use a lot more power than the 5770? Thanks for any assistance!