The obvious follow on question is why do you bother living? (ie meaning of life?)

As for religions, I won't go into them, but you can neither prove or disprove them, only really pose questions which probably only experts in the field can give reasonable? answers to.

As for your infinity point - is the universe infinite?  Is time infinite?
I've seen interesting arguments for stuff like a true infinity doesn't exist - eg, if you kept adding 1 to a number you'd get a really large number, but would never actually reach infinity.  Unfortunately, these fail because you can't base the reasoning on those points.

Is the "Pleasure Machine" really bad?  Most people don't like the idea, but who knows, you could be in one right now...

Don't really get your "desire-fulfillment" point.  But happiness can be relative - eg what makes a well off person happy is different to what makes a not so well off person happy.


At the end of the day, there's no proof for or against God, only arguments which have many possible flaws (one of the most often is the extension/inference principle - that is, you're basing an argument off an idea you understand and applying it to something you don't understand).
So what you believe in is purely your choice.