In terms of content, yes the US CE is almost identical, although the Crystal has a bigger box, and it's very sturdy. The items came very well placed in it!
Here's some comparative videos:
US Collectors Edition:
http://www.youtube.com/watch?v=1O4N1sh0Bvg
PAL Crystal Edition:
http://www.youtube.com/watch?v=W4ljvd9Y_us