302209 Niche writing

I am looking for a creative, niche oriented writer to write 12 articles. I need 10 niche articles with titles and short 2-3 sentences summary of articles. Each article has to be about 750 words long and has to be written using easy to understand language. Later I will provide key words (4-6) that will need to be incorporated into each article. Also, title, summary and articles must use one main key word that I will provide at least one time for title and summary and two times for the body of article. Articles must be interesting for people not familiar with general subject of these articles. In addition to the above mentioned 10 articles, I will need additional 2 articles that will be about the same length with all the same rquirements, but with different role to fulfill. Original 10 will be part of the body of a web site, but these 2 will be working as "infomercial" to be press released for that site. These 2 articles must capture the interest of the audience to get them interested in the web site and the subject. Density of the key words with all 12 articles should be between 2% to 3%. General subject of this job will be home wireless security. Please provide me with a sample of your writing with your bid. I will need the job to be delivered in parts of 3 articles at a time for review. This is first of the series of very similar jobs. The only change will be subject of the niche.