Articles / Writers Needed

I'm in need of someone who can write articles on a monthly basis on a variety of general subjects. These would be things of a wide variety of general interest and topics- i.e. things like mp3 players, home gyms, debt consolidation, etc. but nothing so obscure as bird migratory patterns or anything else requiring extremely detailed knowledge of a subject ;). The length of the articles is flexible but preferably something in the 400-500 word range and they would of course need to be uniquely made for me (no resale packages, etc.). I will be in need of approx. 125 articles per month divided into lots of 25 articles on one subject. So for example I would send you 5 topics I would like articles about and you would write 25 articles on each topic. All content must be unique and of course not stolen or violate any copyrights (I do check). You are bidding on one month's worth of articles (125 articles, 25 each on 5 subjects). And although I am looking for someone who can do this on a monthly basis for me this should not be considered a work contract as there is no guarantee further work will be provided on a monthly basis. (although that is ideally what we will work towards) Prospective bidders should be able to provide writing samples, thank you!