Well, just know the P965-DARK has 4-phase PWM (like most P965 boards). It seems to work fine and be amongst the better P965 boards, this will have 6 like the DFI Nvidia 680 board, and most other P35 boards. Pretty sure it will be fine for power delivery. Sure, it will run warmer than ASUS' 8-phase or the LP, but it's cheaper and if there's any worries just point a fan at it. :up:
Also, iirc, 8-phase eats a whole shatload more watts (I remember reading the P5K eats like 30-40 more watts than the IP35/DQ6). The DS3 etc are 6-phase and do fine.
As for bios options, like I said in one of these threads...The Dark's options were fine (Crazy vdimm etc), I'm sure they won't tone it down, that would be idiotic considering this is surely a better board in every respect compared to the dark.
P.S. Let me know what they say when they respond to your letter, as they'll surely have some better information. I usually get written back from Frank (or I just write him), he's usually pretty inciteful. :)