iBook or Powerbook? 12" or larger? My friend recently has been talking me into switching from PC to Mac, and the iBook/Powerbooks have been of big interest, but I am having trouble deciding. Any assistance would be appreciated. I am a senior in college communter, so I would be having to tote it with me all the time. Also, the Cram and Jam deal (which is just on the iBook, correct?) is just very appealing to me + buying on educational discount. Storage space on the laptop is not of my concern, as I will have few external firewire drives for my storage, and my dvd burner (will this work with an Apple if in an external enclosure? it is a NEC 2500). I will be upgrading the RAM without a doubt, and the video card should be fine for getting me by. My main concerns are battery life (ability to use put in 2 batteries at once), and heat. I have my PC on most of the time, downloading BitTorrents, and the likes of, so it would be on overnight. How do iBooks hold up to that? Are they cool and quiet when idle or using little CPU power? The main apps I will be using would be the usual chat programs, Office, Flash, Photoshop, DreamWeaver, etc, DVD and audio composition, which I believe the iBook should be able to handle fine. Also, how is 1024x768 on a 12" iBook? I am use to 1600x1200 on a 17"-19" on my desktop, but how would a 1024x768 compare to that on a 12"? I desire a higher resolution, but after having a 15" laptop before, it didn't have the idea and feel of mobility for my liking. Thanks in advance.