It's time to up the RAM on my Mac Pro dual 2.66 Xeon from 4gb to 6gb. My mac buddy at work says he spent the $1k at the Apple Store for his memory and will never buy non Apple branded memory. As a tech, and a geek for as long as I can remember it has been my conclusion that all RAM is created equal if it is of the same type, and is not platform specific or dependent. I'm looking at a price premium of $25 for a "certified Mac" 2gb kit from the online etailers, as opposed to just regular run-o-the-mill DDR2-667 PC25300 sticks. I'm pretty sure I'm right, but if not, please explain to me what RAM manufacturers do when they wave a magic wand over a standard stick of memory to make it "certified for Mac".... Thanks.