[bhughes]

My standard answer to this, assuming I am starting out with a normal job-posting's worth of information, is "I don't know that I do want to work at X yet. That's one of the things I hope to figure out in this process." Said nicely, of course.

People forget that an interview is a dialog between two parties. As a candidate I am not trying to "win" by getting an offer; I am trying to find out if this is a place I actually want to work.

[johnjlocke]

If you don't know if you do want to work at a company, then you either haven't done any research on that company whatsoever, or you need to ask yourself if there's even a reason you are applying, outside of the money.