Digg and Stumble Upon my articles

Hello, I have a site with currently 25 articles, we add new articles every week. You will be able Digg an article roughly 100 times and also Stumble the article around 100 times. This will be done for each of the current 25 articles and for all future articles written. I need someone who can Digg/Stumble an article 100 times without using same IP's. I will request a trial for one of the latest articles, who ever performs the task well will win the project. Serious bidders only. Many Thanks