Evidence for the existence of God

[Yadayadayada]

Atheists, please define "evidence".

..We're not the ones claiming something exists. 

No, you are the ones claiming that there is no evidence that something exists.

Which is easily refuted by providing any evidence. If you want it spelled out: we are not aware of any evidence that God is real that stands up to scrutiny.

Evidence is a fact that points to a particular conclusion. For instance, the fact that Joe is dead doesn't point to him having been murdered, there are too many other possible reasons that he could be dead. The additional fact that Joe has fourteen axe wounds in his back would be evidence that murder is the most likely explanation, though not yet conclusive. An autopsy showing the axe wounds were the cause of death would be reasonably conclusive evidence that Joe was murdered. However, if the autopsy revealed that Joe was dead of liver failure, no toxins are present, and the axe wounds were post-mortem; the most reasonable final conclusion is that Joe died of natural causes and then someone hacked at him with an axe.

So, what EXACTLY would you need to see to be able to say, "Wow yes, there is a God..."  What do you consider evidence?