Keep in mind that you are flying internally once you get to the buffalo airport... which means security is about half as intense as it would be in toronto... still 40 minutes is way too close
64 bit mode will utilize more ram if you got it... it will also boot the computer in less then 10 seconds. It does use more battery life though I believe... could be wrong on that Long story short it makes everything even faster
http://www.cnn.com/video/#/video/offbeat/2009/10/07/moos.bomb.moon.follies.cnn Hmmm.... Gotta love how the reporting here is compiled of a mostly youtube video clips...