Welcome to the forums cypherth,
Lets see if we can narrow it down,
Try rebooting into safe mode and see if it locks up.
If it does not freeze then try rebooting into normal windows and see what happens.
If any of the above works, then it’s a software problem.
If it still freezes then it most likely is a conflict between the western digital and the Maxtor sata drives.
What chipset/card do you have for these two sata drives?
Now you said that with the windows cd in everything was fine, is that right?
If so then there is something in the boot sector that is asking for the windows cd.
Are you able to fdisk and format the maxtor drive or is it full of irreplaceable data?

