The timing of these two articles is all wrong, especially with the meltdown of the financial sector. Oh sure, each of them acknowledges this fact, but somehow managed to put a spin on it and seem to imply that this is the perfect time to consider a job on Wall Street. I'm highly skeptical of it.
In any case, these two articles from Science Career section actually do a good job in clarifying what scientists, especially theoretical physicists, can do in the financial sector, and why they are sought-after (before all the economic crisis, that is). It certainly explains what type of skills they are looking for.
Scientists as financial analysts
Scientists as quantitative analysts
At least now, you have a bit more information on your option if and when the financial sector recovers.