Article Writing - 20 original, 250 word + each

Title says it all. I need 20 ORIGINAL articles that should be at least 250 words each. The topic will be about video cameras. Each article will be about one of five different keywords I provide related to video cameras. It is important that the provided keyword be in the title and mentioned at least three times though out the article. The articles should be somewhat informative. They can be about new products in this field or just a news item that relates to the field, but they should be informative in some way. The articles are for SEO content purposes, but the site does have visitors that will read them as well. Obviously these should be written in english and the writer should have decent writing skills. Articles should be submitted in plain text with no formatting. Payment via GAF escrow. Articles will be submitted to a copy check prior to escrow release.