view http info when browsing

[ben]

I'm trying to write a web client script in python to log onto a web
page and pull some information off of it.  The page has quite a few
behind the scenes http things going on that are making it difficult to
write the python script.  I think if I could see the raw http data
that comes to my browser life would be much easier.  Does anybody know
of programs that would run alongside my browser and show the http data
that is send back and forth?

I've looked at plugins like httpwatch and iewatch.  httpwatch looks
good but it costs quite a bit of money, and the trial is not fully
functional.  iewatch has a free trial, but they don't show cookie
info, which is important.

Does anybody know a good way of view the raw http?

Thanks for your help,

Ben