I registered here solely because I just keep going in circles around in my head. The price difference is not HUGE. I prefer the look of the aluminum, and would prefer 4GB RAM, which STUPIDLY you cannot get (cheaply w/ 3rd party) in the Macbook without replacing the memory completely--is there some reason that the memory cards need to be balanced as in 1GB + 1GB, rather than shipping with a 2GB card and one empty slot?
BUT--I don't shoot much digital and already have a tiny USB card reader. I don't have any Firewire 800 devices. I already have a desktop computer and have never needed a laptop--until now, when I will be out of the country for 6 months. Although my primary usage of it will be Illustrator, I have been reading that 2GB of RAM should be enough--hope that's true, I frequently had issues with my G4 even after upgrading the processor (I think I had 1.5GB RAM in that). Differences in the trackpad don't affect me basically because I hate all trackpads and will be using a mouse. I can type without a lit keyboard.
I have read the specs on the site and I guess this is just something I am stupid about: I don't understand the pros/cons about the audio line-in/line-out or combined port, which is one of the few differences between these computers. I will be listening to music and using Skype. Need to get a microphone headset for this, since when using Skype at home on my desktop I don't need one. (er, or do I need one? I just assumed a separate mike would let me speak more softly). No idea how a combined port affects this.
It's really quite bothersome to me that I like the aluminum so much better

. I know that's a bad reason to choose the MBP. It's just hard to follow the other reasons like longevity, when I already have a desktop. Plus I keep reading about cracks in the white plastic and now--colored sheets are a problem?