My sister sent me this article that appeared in the NYTimes re: Saudi Arabia and foreign visitors. For those of us going (or those just interested), it is a good read, and makes me realize how lucky we are that Regent is a pioneer in taking advantage of the somewhat loosened visa requirements that the government has had for foreigners entering the country.
http://travel.nytimes.com/2008/02/24/travel/24journey.html?emc=eta1