Okay, I need to clear a few things up. Atheism does not imply anti-religious views, nor belief in evolution, nor belief in the big bang. It simply defines one who has no belief in a deity.
Personally, I think my atheistic views on religion, evolution, and the creation (or lack thereof) of the universe are unique. With religion, I think it serves as an important part of the cumulative mind & culture of humanity, and I find some sort of evolutionary theory (not necessarily Darwin's word-by-word) to be the most practical and reasonable way in which things came to be. On the other hand, I don't think the universe ever was created. I think it always has simply been, is, and will be.
As far as the universe goes, I think its fashion is cyclical rather than linear. There is no start or end, just the path in which it cycles. I hypothesize that the universe cycles endlessly through Big Crunches & Big Bangs (all stuff comes together, blows apart, ad infinitum) simply because it makes no sense that, classically, 'nothing came from nothing and everything became what it is from nothing.' My thoughts on theism are similar in the way that I find existence of gods to be nonsense.
To start, I find it easier to understand things when 'god, who has always been, is, and will be, created the universe' is simplified to 'the universe has always been, is, and will be.' I find it perfectly acceptable to believe in a world devoid of a god. Furthermore, there are so many damn religions, with so many damn gods, I just can't understand how one god or set of gods could be the true and right choice. Gods, from religion to religion, are all so different, and the stories contained within the holy texts so diverse that I don't accept the universality-of-god-theory either.
And Darwin's evolution has its holes, but the gross text of it is ultimately right.
13 Spider Bloody Chain, I think that all answers your questions, but feel free to ask more.
