LinkSniper & Auto-Fill Checkout system - repost 2

Hello, I'm looking for an application very similar to the Twitter RSVP system you developed. What I need is the application to sniff out links from various Twitter accounts (nikestore, finishline, footlocker, footaction, others to be named) Launch the link Select a size of the product Add to cart Move to the checkout screen Auto-fill contact information including payment Submit the order I'm including Twitter and PHP as the needed skills, but I'm sure you know best what needs to happen. I need this application to run on OSX and Windows. Thanks for your time, Ramon