sure. first you can cite just about every deflationist out there. add to that:

1. robert prechter

2. david malpais

3. marc faber says you shouldn't be suprised if it drops to 700

4. jim rogers says it could go down to 500 if IMF sells its gold

that's just off the top of my head.

personally, i think 900 is going to be support, but i wouldn't be surprised at all if 850 is touched in this current wave down. and i certainly am expecting sub 900 later in the year.