Since the D70s is a new model, I wouldn't expect to see a price drop for awhile. You might still find a new D70, which is the predecessor to the D70s, around at a bargain price. There's a firmware upgrade that you can do that will give it most of the advantages of a D70s.
Usually price drops happen before a new model comes out, to clear out the old inventory. Sometimes they happen because a new competitive camera comes out but the Canon Rebel XT just came out too. Might be awhile...