I think I put something similar, less poetic though! Once I set up the registry I am going to add the link above the statement, and send an "update email" to all the guests. We do ask that if you are planning to go to Hawaii,
that you do not bring or give us gifts.
We see it as a gift to have you attend, and we are
sure that you can save that money on an holiday excursion.
I used weddingwire.com because they are free and are pretty easy to use. They have a lot of designs, but are bit limited in font types and colours. I'm really happy with how the website turned out, and my guests have found it easy to use.