To tag on to this thread, I am also thinking of crossing over and am considering either a refurbed macbook or 15 inch macbook pro. Am considering the refurbed units based upon the good experiences of several friends up here. I am not too excited about dragging around a 15 inch laptop on the road so am really leaning toward the macbook.
The apple store currently has 2 refurbed macbooks:
http://store.apple.com/AppleStore/We...wJqyvR1hPrbiWE
http://store.apple.com/AppleStore/We...wJqyvR1hPrbiWE

I will probably add another 1gb of memory to either one. Anything to distinguish one above the other?

The store also has several macbook pros but as I said I am not too inclined to lug around that big of a notebook unless performance is substantially superior to a macbook. I won't be doing anything substantial with the laptop - no video editing or anything like that. Just wrod processing, internet connectivity, some gaming, watching movies, etc.

Any advice?