I have a feeling that the pro model will fall in the $700-1000 price range. The cpu is an i5 and who knows what will be used for the graphics processor in it.
The pro will most likely start at $800 and end at $1200 .
I'm going to assume in febuary when this launches they will forget the 64/128 option and go with a 128/256 option. The 64 gig drives are all under $80 and the $128 are now at $150 and are all droping , if you pay attention you can find 240+ gig drives for less than the 128 gig drives priced two months ago.
I'm going to assume the more expensive models will come with diffrent ram amounts and diffrent processor speed options