Forcing all desktops to update - pls help

Hi all

I have a network setup with around 60 PCs all running Windows OS from 2000 up to Windows 7. They are all licenses and original and therefore can update freely online. However since they are connected with a domain controller, only the administrator (which is me!) can do the updates. As you can imagine doing updates on all PCs manually is a huge headache especially since updates come out frequently.

I know there is a way to automate this : WSUS. Can anyone suggest an alternative solution which is less costly than WSUS? or is there any other to implement WSUS at less cost? Any other help?

Thanks a lot guys!

That size network is really beyond the scope of what we do here. Our primary focus is private and small networks for individuals.

That said, you might check out WSUS alternatives. I note WSUS Offline is mentioned several times.