Hang on, your later paragraphs suggest those who think evolution can be squared with belief in a theistic universe, actually perhaps just don't understand evolution or pay it lip service, or just don't think about it very much. A great many scientists believe in God and also believe in evolution (I think 40% at least from recent polls) - Polkinghorne, Lennox and McGrath, Francis Collins are some of the more famous current scientists writing in this vein of thought - but a good many Christians don't just spout the notion about theism/evolution without thinking about it.
Your fourth paragraph basically restates that there is "waste" and chance and risk in the system of evolution: yes, there is - both in the macro sense (whole species dying out, some animals becoming prey for others) but also in the micro-sense (our bodies' cells constantly dying and being replaced, plants using carbon dioxide and producing oxygen as a waste product, or by-product). This all comes into the frame of "free-will", in my thinking. Some of your examples are human choices - rivalry, infidelity, polygamy-as-power-or-greed (rather than because of shortage of males in a population) and that's human freewill being exerted to the disadvantage of others. Life exists and works through freewill - one particular sperm meeting the egg first, genes being randomly compatible/incompatible for what we deem "successful" life to ensue, the problem of pain when the risks in life meet our fleshly bodies and our human emotions and spirit. If God made a system that was guaranteed to be happy-happy, stuff wouldn't exist really and anything that did, would be living in some kind of Truman Show world. Plate tectonics, for example, allows our world to hold together without imploding/exploding, allowing life to flourish, but also causes earthquakes, volcanoes and tsunamis. If God made a perfect world, he might as well not bother, and really it actually physically would not be possible.
As a Christian, I don't personally believe there was a "time before when God created the world and humans when there was no suffering". That is linear thinking, implies that God "created humans and the world" in a creationist-type way. Adam-and-Eve tells me that as part of a creation that has freewill, I can reject God wholly; but if I chose to be with him, that this current world can be made better - that is what "being with him" means right now. And ultimately beyond life, there is something/heaven/a state where there will be no more pain or crying and what has been faulty and hard here in life will be transfigured.
I ought also to say that in your second para. where you compare "us" not noticing these things nowadays compared to ancient peoples - most of the world actually notices these things all the time, all of their lives, right now. The privileges of Western post-industrial society are extended to a minority of the world's population.
Philo of Alexandria - a contemporary of Jesus and Paul - wrote that the Garden of Eden story was a symbolic fiction, not a mythical fiction, but a way of making an idea visible. St Augustine said much the same four centuries later.
Evolution is a lengthy process, as well as what we might call "risky or chancey" and also what we call "painful" because of the loss of life involved. Some of what we think of this is human sentimentalism, not about suffering which is hard to bear and observe, but about life and how it involves change and decay all the time. If it takes the universe billions of years to evolve to produce oxygen that will produce life on earth that will result in what we enjoy now and what future life on earth will enjoy, why is that a waste? Why should millions of years of fruitful biological growth and life be damned as "naughty" of God? What does pain mean ultimately? Is an organism a waste or meaningless because doesn't exist now in 2010 or because it never got to reproduce or live to a ripe old age? Or because it lived with pain or difficulties? Actually it is more usually the theistic person who puts value and care on those people and things that ultra-Darwinists would imply are pointless in the selfish gene's search for eternal self-perpetuity.
The story is about the relationship, not about the origins of the world - it's the relationship that matters: that's what Jesus puts right, and shows us how to put right.
I hope this helps. I don't mean to be too critical of your phrasing.
you're asking interesting questions.