Job indecision

I am so torn about what to do job-wise. I need to make up m mind soon. Do I want "just a job" with no stress, lots of security but no challenge? or do I want a job that is challenging, stressful but also very rewarding - with a lot more potential to make the big bucks?

I know that 5 years ago it wouldn't even have been a question - I would have gone for the latter - i.e. my current position. But now I am not so sure.