Do you think that PHP can:
a) monitor another site for specific data, e.g. a stock site for prices
b) if a price changes, log into a 3rd party site, and complete and submit a form available there?
yes
LOL... Well, the question got answered as it was asked... Andy8, you may want to look at the [man]CURL[/man] functions as well as the file functions such as [man]fopen[/man]. Also, hotscripts.com may have a similar script, so I recommend looking there to get started.