Clients not Paying

I know that when we enter into the freelance world we are going to come across clients who don't pay a dime after the work is completed. I did a 6 page website (just the content) for a client and he gave me some bs about he hired someone else to do it the day after I had already turned in the articles. This is very frustrating. Any suggestions on what to do with the content now? It is about eCommerce, Web hosting, etc. I should have made him pay upfront at least 50% of the job to ensure that my time was paid for.

if his pages is not indexed yet you can post the articles to 1000s article directory so all he got is dup content

My problem comes with the fact that these aren't articles. They are pages for his website that he was building. I can of course take his company name out but do you think they would really run as good articles?

Make a site that deals with whatever that client was going to do, put the content on it, and then sell the whole thing on Flippa.

hunt him down and smack him on the head with your keyboard then choke him out with your mouse

hmmm, not sure what can be done about articles but for all webdesigners...check this out: http://codecanyon.net/item/antitheft-module/196033