If you know the answers to any of these questions, please send me email.
See also: Projects I don't have time for by Nelson Minar.
This is close:
lynx -post_data < /home/neal/info/udall-email-inp http://www.house.gov/htbin/wrep_findrepbut it dumps output, rather than going into interactive mode
Browsers like Mozilla and IE also have ways to automatically fill out a form, which makes the process faster, though not fully automatic.