Sounds like a society of couch potatoes and drug addicts to me. From my perspective you have a much too optimistic view on the human race. If people are not forced to exceed, they will not. Suffering, that does not cripple, defines us. It makes us stronger, more agile, more determined. I would go so far as to say that when we have dreams and goals and we strive to achieve them, by making work towards step by step, each moment we feel better about ourself. Each success builds us and makes us more confident.
If it were not for women, I'd just sit home playing World of Warcraft, drinking energy drinks and masturbating, to put it bluntly.
Even if our basic material needs are met through automation, we are all still engaged in a very bitter competition for other resources, you do realize. There simply can not exist a state of utopia as long as we reproduce sexually (I have a very Freudian view on this). This is a catch-22 of course. The state we are in defines what we consider an utopia.
You are assuming that if we didn't have to worry about producing material resources, creativity and intellect would be the determining factor in who gets their way. Why not violence? Why not intimidation and sociopathy? As tightly knit social groups (small villages and communities) break down and we live in one global village, nobody really knows each other. Most of the people we meet are complete strangers to us. It's much easier for exploitative and cruel personalities to thrive, because they can stay hidden in plain sight. They can pretend and manipulate to their dark hearts content without the fear of retribution. If they get discovered they can just move to a different location.
As we have more material resources as welfare and a legal arm heavily protective of women and children, women don't need a protector nor a financier. They can just get the sperm they want and raise kids outside of marriage. Old institutions that were the bedrock of civilized society will all but crumble to dust. Widespread soft polygamy will replace it. Those with the most instant charm and good appearances will win, instead of those who build things to last on the long run. Short term strategies will win over the long term ones.
These are all hyperboles I use to describe my views of the modes of societal change and interaction.
It is my theory that the easier it is to meet material needs, the lazier people get and more prone to instant gratification. It's not that difficult to extrapolate from this one simple truth.
Also one of the problems I didn't touch upon, is how our natural instincts that were developed for a very different world will overtake and corrupt us: http://en.wikipedia.org/wiki/Supernormal_Stimuli. Slow seduction of irrational and unbalanced stimulus can make our behaviour very self destructive on the long run.