Last December I got three job offers in one day. I accepted the first one I got without realizing that two more would follow. Trying to be "ethical," I honored the first one, even though I overall had a bad feeling about it, and told the other two that I had already committed to another employer.

Oh MY. What a mistake. I'm so very sorry I didn't listen to my instincts.

So my advice would be to go to and enjoy the interview. It's great practice. I actually enjoy interviewing, so I would look forward to it.