Putting movies onto the iPad is really incredibly easy.
1) Download the free app - OPlayer HD
2) In iTunes click on Apps on the top menu bar
3) On the left hand column - Sync Apps - highlight OPlayer HD
4) The main white area of iTunes can be scrolled down to reveal info on the app
5) drag and drop virtually any movie format file into the OPlayer HD Documents box
6) Fire up OPlayer HD on your iPad and go to My Documents and you'll find your films.
7) Job Done.
Top tip: to delete a film, go to the OPlayer HD Documents box (per 5 above), highlight and press Backspace to delete.