Moving to Riyadh

I will be moving to Riyadh in January and would like to know what to expect at Immigrations and Customs when I enter into the Kingdom. I will be coming on a single status assignment and I am not sure what I can bring and cannot bring. I know about porn stuff which I would not bring anyway, but will the search through my computer to see pictures such as my wife in shorts, etc? What kind of movies can I bring in on an external hard drive? And other things like that I need to know.