I'm trying to put a 512 MB ram on my 12" 1Ghz ibook, the new ones, and I got confused by kingston's online store. http://www.ec.kingston.com/shop/partsinfo.asp?ktcpartno=KTA-PBG4266/512 http://www.ec.kingston.com/shop/PartsInfo.asp?ktcpartno=KVR266X64SC25/512 The first link is what I get through their memory search by computer model. The second is what I get simply searching for some PC 2100 sodimms. There's a 65 dollar price difference. Do I need to buy the expensive one? Do Apples use non-PC standard RAM? Thanks in advance for any help for this Apple noob.