Ted & Arlene-
I think you'll really enjoy St. Kitts. In St. Kitts they use EC (Eastern Caribbean) dollars. One US dollar equals about 2.6 EC dollars. Both currencies are accepted throught the islands.
As for restaurants.... you can go from low budget to HIGH budget. You might find the restaurant reviews sections on my travel forum helpful myislands.myeyez.net
Or feel free to e-mail me with other questions: firstname.lastname@example.org
Look forward to hearing from you!