It looks pretty standard faire game videocard.. although NVIDIA has harped on the need of external power, it looks at least like they will eat crow for this one... albeit has become a necessity given todays *wild* variance in motherboard/AGP voltage delivery.
Looking at the video, the parts are pretty obvious-
A) These are two, typical fan power leads. Likely where the HS/Fan that will eventually be placed on this card will go. Reference Design I'm betting has two, for convenient placement for different 3rd party HS/Fan designs, or the reference design will include dual fans (like some of the racier GF4's have) across a monster HS that encompasses the entire top of the ram and core chip- as drawn in blue.
B) This is obviously an external power lead/molex. Plug in a standard HD/device power lead here.
C) If you look closely at a scan from the video, this portion is totally flat. This also matches silk-screen/labels on boards for identification. This is likely a brand/model tag area as it looks totally flat.
Although hard to see from the scan, the back of the card appears to have DVI, VGA and a SVideo ports.. much like the GF4 Ti4600's with capture/tv-out. The chip to the left of the GPU is likely a Phillips or Conexant tv decoder chip, but anyone's guess if the NV30 will come "out of the box" with the capture/tv-in like the high end Ti4600s. I'm hoping it will.