OD authentication/authorization into the local account

Hi All, 10.4.9 OS X Server, OD, Network homes, 700 accounts, managed labs, mostly 10.4 clients In the most of my labs are my students using network logins. But some SW is not network login friendly, such as Digidesign ProTools, or we have some workstations with such a specific audio/video hardware that having network login is just a pain. So on some workstations, students are using one local account ie "Students" with common password or no password at all. However, these workstations are managed anyway (like power settings, network views, etc). The problem is, that I need to have control over the use of these computers - I need every single student to login using his / her user name and password and then log out at the end of the session. On the other computers around the college I need these students to use their network home. Is there a way how to force the 10.4 client to authenticate and authorize user against the OD and then login the user into one common local account? Login script or something simpler? Many thanks, Stepan