Screen Scraping in Ruby + Read/Write to MySQL server

I have a MySQL server on a remote linux box already. There may be installation requirements for ruby. I need this written in Ruby, because I will have to use Watir to interpret a javascript-driven website. This will have to be run from a cronjob (but I can handle that). The code I need is essentially: # require nokogiri, open-uri, watir, mysql # Mysql database exists already with schema + data. # # Get url data from database (url, min_price, max_price, undercut_by, admin_latest_price) # For each URL # Scrape up to Top 2 Seller names (new products only), total price # If OURACCOUNT is the lowest price seller [check if we are within undercut_by of next seller] # Check if OURACCOUNT_curr_total_price = undercut_by + seller_number_2_price # Yes: Do nothing # No: set admin_latest_price = (seller_number_2_price - undercut_by) # Write admin_latest_price to DB # else # Check if total_price_seller lower than min_price # No -> set admin_latest_price = (total_price_seller - undercut_by) # Yes -> set admin_latest_price = admin_min_price # Write admin_latest_price to DB #