The 2-bedrooms villas at the DVC resorts can be booked through WDW. The problem is that they are offered to the DVC "home" owners first (I believe they can book a home resort 11 months out) and then you can book them shortly after. I booked a 2-bedroom at OKW last year through the on-line website. You can check on-line for your preference. They won't show availablity until you get into the correct timeframe.
You can also check the DVC section of this board as some DVC members offer points for sale to book a villa. You will find it cheaper to have a DVC member sell you points (they actually do the booking) then booking it directly.