Lord Ashtar, I think you may have succombed to the slippery slope.
Let me explain to you first of all that Creationism isn’t a theory. Period. In fact, most ignorant creationists enjoy painting mainstream scientists as dealing only with a theory as though that let their arguments be more correct, even though there is absolutely NO evidence for the litteral creation myth as outlined in Genesis. (oh, and by the way, when I say absolutely NO evidence, I mean there is not one detail of the story that holds any observed scientific validity).
I sincerely hope you aren’t a young earth creationist and have no qualms with the Big Bang. Those people are just plain ridiculous Don Quixotes fighting windmills.
So then, perhaps you believe in Gap theory? Well, IANAEB (I am not an evolutionary biologist), but it is overwhelmingly apparent to me that Genesis gets the whole order of life’s creation basically wrong according to the fossil record (which is much more complete than cretaionists are apt to admit). But let’s not blame the book; Genesis wasn’t written with the intent to prove a scientific theory, instead it was written to give a faith-based account of creation.
I can, however, counter your argument against abiogenesis. First of all, life appears on Earth almost from the very point when it could. There wasn’t a long time when there was no life and then there was, because basically life couldn’t exist in the brief 500 million years or so before it showed up. Of course, it is rather difficult for creationists to use this to their advantage, because it basically amounts to you admitting that the first life on Earth was microbial, unicelluar, prokaryotic, etc. and there was a progression that followed that looks disturbingly like evolution. So, it is a bit of a mystery as to why life occurred so soon on Earth, not, as you described it, why life was sterile for so long when it could hold life.
If you feel that there is no such thing as abiogenesis simply because spontaneous generation was discounted, then you are living in utter contradiction. Abiogenesis is dealing with very simple life and precursors… NOT flies in rotting meat! I have yet to meet a Creationist who didn’t admit that at some point there was a time when there was no life, and that God created it. Well, in that case a kind of spontaneous generation occurred.
According to current origins theory, abiogenesis occurred at some point, the exact mechanisms of which we are still working out. It may even occur today, but we have yet to observe it as contaminant life is fairly robust at eliminating pristine conditions required for the bizarre entropy-defying life to get going. Of course, one could also be a zoo-hypothesist or a panspermist. In short, one need not resort to creationism to explain away the abiogenesis quandary.
And besides, we know that the precursors to life are found in abiotic conditions. We are also able to demonstrate pre-biotic selection techniques that are peculiarly similar to genetic copying. Life can be explained on the molecular level and Irreducible Complexity does not hold water in dismantling the theories for how such molecular mechanisms develop.
We are working hard to come up with abiogenetic theories of origins, and the evidence indicates that on the timescales we’re talking about life is apt to occur…goldilocks effect-like. Evolution is extremely robust in this case because it only takes a few abiogenetic moments (or perhaps one) to initiate the process. If you are like most creationists, you tend to believe that God makes all species and drops them down in Eden. Of course, I don’t know if you believe this or not, but you are clearly misinformed if your objection to evolution comes from you the fact that you find abiogenesis unlikely.