So I was trying to figure out how to watch the web for available Wii's and I came up with the idea of writing a little script to do it for me. My solution was to write the script in Ruby. Here's what it does:

• Parse the Amazon Wii item page for an out of stock message
• Send email when it fails to find any such message
• Creates a file when the item is confirmed to exist. The script checks for the file. If the file exists, the script exits immediately. This prevents us from getting many extra emails from step two.