I'm still kicking this topic around in my head, but here are a few thoughts.
Creationism clearly has a few unexplainable problems
We just don't know where the heck we came from from a pure analysis standpoint. There IS no way to know, at the current time. Some have faith that a personal creator is behind it, which to me is not as far fetched as many say, given the truly puzzling questions related to how life could have sprung up from non-life in the first place. As for who could have created a creator...who says everything needs an origin?
It appears that there are big problems with evolutionary theory as well. While it is apparent that adaptation, optimization, & speciation through narrow ranges can happen through genetic mutation/natural selection, can any natural process compose genetic programs for new evoutionary features in a closed system?
There is a $100,000 challenge to anyone who can demonstrate this possibility. It's called "The Evolution Prize": http://www.evolutionprize.org/
In the challenge description is the following:
Consider the following conjecture : The evolutionary potential of any system based on encoded instructions is forever limited to that provided by the available instructions. If the system is closed to additional instructions, true innovations will not evolve and the limit will be reached. The challenge may be stated conversely: disprove the above conjecture.
The point of this prize is not to demonstrate "proof" for creationism, but rather to suggest the probability that the genetic material for highly evolved life originated from beyond our world. In any case, I believe it is a demonstration that the commonly accepted notions of evolution aren't as much of a sure-bet as many believe.