[sigmagrrl]

I was offered a position recently that I REALLY wanted, but in the end, declined. I did the classic Pros/Cons list, but what worked was visual imagery. I put myself in the position in my mind and tried to picture a new "Day in the Life..." and it sucked. I was tired, cranky, miserable. I had a job that was similar in the past, with less responsibility. Some of the pluses were AWESOME, but I know in my heart I made the right decision. Don't ever take a job in anticipation that "it could get better". If the initial job responsibilities seem unappealing and you haven't started yet, guess what? It will be worse when you are actually living that life....Wait and take the position that you ACTUALLY want...
I firmly believe that taking a job JUST for the money could pan out poorly in the end. Money is important and fun, yes, but your job should be stimulating and fulfilling as well. I wouldn't say this is the case 100% of the time, but it's my general rule (to each his won)...
Also, don't turn down a job simply because you think you are underqualified because, unless you outright lied, you deserve the challenge, particularly if it is going to lead you to a better position later on.