I am sorry if this was posted before. I just found it. Someone has got the HBO's adaptation script and wrote his comments about it:

www.towerofthehand.com/blog/2009/01/28_towers_take_on_the_script/index.html

Sounds very positive.

One disturbing thing is the possibility that the establishment of Cersei and Jaime as siblings is not overt. If they do end the episode with "the things I do for love", it loses a significant part of its impact if we don't know that they are brother and sister.

I'm so looking forward to this. It has so much potential to go wrong, but HBO has turned out some great series in the past.