Indeed their are quite a few options in Dubai. Which, to be honest, amazed me when I first arrived here.
On this page you find links to the; Churches that have a website & location maps
Most of my friends that go to the Church on Friday visit the area behind Jebel Ali Village which is unofficially called Church City. How far that is depends of course where you are coming from.
I am not aware of Dubai ECC and what it stands for.... would like to know.