30 - Keyword articles on soundproofing topics

I need to have 30 articles written for me about soundproofing. I have the titles completed for each article. They will need to be factual and unique. I will check each of them for plagarism. * I will not take any articles written with article software or any other means except by the individual themselves* Each article needs to be within 500-600 words each. I can only pay a maximum of $1.50 for each article. My deadline to have all the articles turned in will be Friday July 20, 2007. Total copywrite will transfer to me once article payment has been received.