Excellent post, you couldn't have said it better! Laughter is the best medicine, after all.
One of my mates, Neel Kolhatkar (neelk on YouTube) is a stand up comedian and I've been to a number of his shows, but he has a heap of viral videos on YouTube that I like to watch if I've had a long day.
I also love Jenna Marbles on Youtube, she is so funny too.
Chris Lilley is a delight to watch as well!