[Samba] pushing out files or installs

[Anne]

I've got 20 windows desktop machines in a lab on a samba network. Throughout
the semester instructors usually find some software they want installed. Has
anyone come up with a good way to push out files to all these machines? I've
seen demos of software management in Windows 2003. Or any inexpensive
commercial product for software management for networks that are not Windows
AD?
 I think I've seen some setup using .rhost files in windows.
 Thanks,
 Anne