SEO Writer wanted for 50 articles

We need 50 articles (250 – 300 words each) written on Credit Cards. The articles have to be written with Search Engines in mind thus keyword placing is crucial. The articles will be used to create content rich webpage’s. We want all articles to be supplied within 21 days. We do not accept "copy-and-paste". All content must be 100% original. You may look for ideas by browsing other web sites on the net, but may not just copy them. Final articles must be free of typos, spelling and grammatical errors We are paying $2 per article due to the size (250 – 300 words) of the article. Please do not bid if you cannot supply these articles at this price or in the timeframe.