It looks like a general slow downward trend.  The current price is around a 60 day (or longer) low.

I don't know if the bid wall at MtGox is useful as people can remove their bids before they are used (and because of the private/secret pools that don't show up).  There is almost always a decent sized bid (and ask wall) of 5000-15000 near the current price, unless you have heavy volume and that can leave a 0.5 price range with zero bids/asks.