WWW::Mechanize is much easier to use than LWP. Some tools that can assist you in creating scripts for WWW::Mechanize (which has its own cookbook) include HTTP::Recorder and Ethereal (the latter being a Network Protocol Analyzer which lets you see exactly what your browser is communicating to a site and vice-versa.) castaway suggested Ethereal to me a few weeks ago when I was stumped on a web-automation problem.

An article that will help you get started with HTTP::Recorder may be found here. If you have any further questions about HTTP::Recorder, its author, leira is one very helpful PerlMonk. :-)

HTH,