Preparing a WinXP pro Computer lab

Hello.

We are preparing to install Windows XP pro PCs in a Computer lab.

My problem is that the PCs will be used by many students thus I would like all students to use the same profile and prevent Windows XP pro from creating a new profile (desktop settings etc) for every student.

If you could tell me any relevant web links regarding experience of other administrators on this topic, installating/securing a Computer lab it will be great.

Thank you in advance.