Great - thanks!! How did you like the Lagunamar? We stayed there when it was the Sheraton, but haven't been back since they rebuilt it as a Westin. We're VERY excited to check it out!
It was a wonderful resort. The beach was rough, but you get a lot of that in Cancun anyway. There's some ruins between the Park Royal and Lagunamar that are interesting to look at. The rooms were very nice too. Check this out for pictures: http://westin-lagunamar.com/interior_photos.htm