It seems there are a few people thinking that the commodities boom is going to take a breather for several months, maybe through the end of the year. There are a couple nice charts in the link below.
If this happens, the stock markets could use that as a queue to take off unexpectedly. If gas drops down to $3/gallon people may feel good again, but the problems will still be there for when the bear decides to come back.
One interesting thing this past week was DJIA Transports are hitting new highs. Strange how that occurs when truckers can even afford to run their trucks. Railways are keeping the Transports alive. I read recently that it was cheaper to transport trucks by rail, and than truck a short distance to final destination.