I have a Lombard that I would like to upgrade to Panther from OS 9. I have 192 megs of RAM installed. Although Apple says the minimum required is 128 megs, I have often heard that for OS X, the more RAM there is, the better it is. I'm wondering, just how much is enough? I just want to get enough that OS X would run smoothly, about as well as OS 9 does. Also, where is the best place to get RAM and does brand matter?