First, I thought I was going to buy a 13" MBA but have now decided on the 13" MBP due to my concern that the MBA isn't powerful enough. Options are: The new i5/Intel HD300/320 HDD for $1127 or Refurbished 2010 2.4GHz Core2 Duo/Nvidia 320M/250 HDD for $929. This is my secondary travel/take to work computer and will be used to stream stock charts with 5-6 tabs open at the same time and general internet and Office usage. Cost really isn't a concern; I just need it to work really fast and well. OK, which computer? Thanks for the help.