SEO articles

I need 15-20 articles about various items related to Service Oriented Architecture, Windows XP tuning, Tips and Triks for setting up secure Wireless Network at home, Photoshop how to tips, How to edit and work with Premiere Pro.... Just to mention a few possible topics that we are interesed in. These will be published at portal that offers quality information to users that own and run a computer. An article is minimum 1 A4 page + illustrations or images (screen dumps). The writer can publish them under own name if wanted and we will translate to Norwegian as well. So as you understand its general information that is searched for in search engines we are looking for. I give you full freedom to write about anything you like as long as it is good and useful information for the general user. The SOA articles will be used in a different portal targeting customers that wants to know what it is and why use it. These should have good quality and written by someone that is familiar with developing or managing project where this is part of delivery. The articles should not be a copy and we will investigate using the common search engines in order to make sure they are not copied from some website. If the writer(s) has knowledge about how to write content that is SEO then they will be prefeered as provider. Language English. The budget range is indicative and can be adjusted. I was not sure what to set there so i just picked one. It will however not be adjusted dow :-)