User's editting profiles

I have some user profiles and I'd like them to be able to update them as they see fit (Change their email, password etc etc). However, their options are rather long and instead of having these turkeys have to type in stuff into 80000 form fields, I'd like to display the current data in those fields and then let them just change what needs to be done. What is the best way to do this? My only problem is propogating all their data through the HTML form (I can manage doing one or two fields, but doing 15 is rather not fun) from the database (two different tables too, including checkboxes). - k