Creationism and Evolution can indeed exist together and I have no problem at all with the idea of "intelligent design". Personally, I've learned that there is more to life than meets the eye and science fiction is, I believe, a very healthy mind expanding way to look at life. My problem with creationism being taught in schools is that Christians want to insert their beliefs in our text books and nothing else.
I think it would be great if science teachers could theorise that super-intelligent aliens were responsible for life on earth or could talk about the plethora of creation theories that the world's many religions believe in.
There are quite a few that talk about exactly how the universe and the planet earth were created and it's great to think about.... as long as your "higher power" could just as easily be Nyx, the goddess of the void as it could be Jehova the Christian god that brought our universe into being then why not?