My main advice is for you to take an interpreter with you. If its anything like the UAE sharia courts, then arabic is the language used. All documents will be in arabic too.

By getting married in a sharia court, you are not in any way making any relegious statement. Super7 is absolutely right. Neither of you needs to be muslim.

As another poster said, the laws here are real, and severe. It may not be something that they actively address at this point in time, but moods and attitudes change constantly. You only need one bad press instance involving an unmarried couple and theyll be onto unmarried couples like a ton of bricks.

One thing you should know though. Your future husband can divorce you by just saying "i divorce you" :)