Whenever I loaded the NYTimes website, I noticed quite a bit of lag when scrolling through their webpages. It's full of ads (java, flash, etc.). I reinstalled Flash and it did nothing. I was browsing through the utilities folder so I could repair disk permissions. I saw a Java folder, which I double clicked. Then I saw a preferences app. I clicked it and moved up the 64-bit version of Java to be the primary Java used. I'm not sure why it wasn't already set to be primary. At any rate, Safari is a lot faster now. Some other MB Aluminum users might want to take a peek to see if the first listed Java is the latest 64-bit version.