Automated posting of content to twitter

Hi. This is my site: [login to view URL] I want to improve my rankings in the search engines and get more traffic to my site so I would like to automate the posting of some of my best deals to twitter on my own twitter account. My shared host has a "cron job" option in the cpanel so I hope that should cover the automation. I want the following to be posted to twitter: [Shortened Link] #keyword #keyword #amazon #dealoftheday The shortened link will be a random item from the top drops section of the site.