@San Pedro. My suggestion is to make a decision after the card gets reviewed next week. Some tech websites show pictures of the card after it is installed in the case. Until then, you will not know the length of the card. The people who know are not sharing the information. Also, I think the 3870X2 will only have two 6 pin connectors and no 8 pin connectors. But I do not know for sure, it is just speculation.
@LAN_deRf_H. The 9800GTX2 is ENORMOUS! It will be at least 2 inches longer than a 8800 GTX. You will need an eATX case to house it. Or you will have to cut the hard drive cage out of your case. Again speculation.