7950GX2 + P5B Deluxe?

I'm wondering if anyone has tried using the newest BIOS that was released a day or two ago along with any beta nVidia drivers to test if the 7950GX2 works or not yet.

I'd rather get the P5B over the P5W because I have a lot of SATA drives and I like the AI nap feature which as far as I can tell is on the P5B and NOT P5W.

Thanks.