Hi there, I'd like to add some RAM to my 17" MBP SR; I was going to throw in 3GB of Corsair Mac RAM, but I've heard that the benefit of the extra GB is going to be negated by losing the Dual Channel addressing. Now, I figure I'll just put in 4GB, then, so I should get dual channel addressing and more RAM and everything should be happy. My question is what type of RAM do I need to add, exactly? Near as I can figure, I need PC2-5300 SODIMMs, would a pair of these be fine? How close do the sticks have to match to take advantage of dual channelness (I remember buying kits in the past for my desktop setups that had uber-matched sticks or whatever; that may have been a marketing gimmick to better separate me from my monies)? Thanks!