I just purchased at BLT. The current price is $112 per point. They are offering an incentive of $5 off per point in the form of a Disney Gift Card that can be applied to the down payment and also matching DP for SSR, DLR or II. The down payment is 10%. New members must purchase a minimum of 160 points. I have read on the boards that beginning mid-Jan the minimum to purchase at BLT will be 200.
AKV is also currently being sold by Disney. The rate I think is $104 per point with a $6.25 discount. Mid-January the cost per point will increase to $112.
All other resorts can be purchased through Disney, however there may be a waiting list. Your friends can also research the resale market.