Ok I canceled the order and ordered the X1800XT.
It comes with the 6 to 4 pin converter.
Hey good deal; cheapest of the bunch and comes with the cable you need. How much was the 7900GT you looked at? I'm sure that card would have made you happy too, just can't see spending more for one, especially when you mention the X1900XT's being to costly.
I tell ya, I upgraded from a 7800GT CO (evga oc'ed) to that Sapphire X1800XT for Oblivion, and it just blows it away. Also notice a big improvement in BF2 and Farcry. Those two games basically don't even stress the X1800XT, unless you play around with adaptive AA , HQAF, and/or HDR. Regular 4xaa/16xaf is a piece of cake. I was impressed to say the least.