What is the real world speed/reponsiveness like on a Macbook? I currently have a PowerBook G4 1.67 GHz - 1.5 GB RAM - and feel as though my machine is not responsiveness enough for me. I use it in a business environment and just find it too slow. I do push the machine as in having a lot of programs running. Typical Day. Virtual Desktop Running - 2 desktops - Run RDP in full screen in one and use all OS X apps in the other RPD full screen to my Windows Box iChat Microsoft Word Mail Safari Quicksilver Growl Omni Outliner - Kinkless KGTD iCal Devonthink Journaler Multiple Widgets I multitask a lot and the point of my computer setup is to be able to input and output information quickly - hence usage of quicksilver and KGTD to improve workflow. The speed issue I have is doing the key combo for Quicksilver and then waiting a few seconds for it to launch, and then a couple more to actually have it be active, I switch to dashboard and wait ten seconds. Switching between programs can stall for a while. The waiting is starting to get really frustrating. I am planning on getting a MacBook once they are updated in the near future - with all the issues I have heard about I figure i will wait till Rev. B comes out. I will take it up to 2 GB of memory and would like to use Paralles to run Windows XP instead of RDP to a machine. For those of you that are currently using a MacBook do you think I will be happy with the upgarde? Any other suggestions to make it faster - 7200 RPM hard drive instead of 5400?