USDJPY, my pet, is going down. Took out August 16 low. If it closes below that today, that should form good resistance, but it has to do that. This is a pair tough to trade on technicals due to the credit crunch issue and possible intervention. The former is a worry because part of the reason for this move seems to be the carry trade effect. Look at the AUDUSD. The USD is gaining there and that phenomenon is not orderly, thereby posing a threat to a steady decline in the USDJPY move just started. Whipsaws can therefore easily exhaust any repeated attempt at following the downward trend.
However, shorts below the August lows should offer good r:r. Stops above that level should be respected, as always. If the negative USD sentiment remains and that resistence holds, this can offer a good x-mas present with good size. You never know, the thing may go to 100 by year end. (one secret to success in trading is holding some trades for huge winners. I have no idea whether this will be a big winner from where price is now, but this is a probability game). Good luck.