samba - Jun 2006 - Using Security ADS or Domain 3.0.22

Hi list,

I'm trying to set upp a simple file server within a Windows 2003 AD  
domain.

Its a FC4 machine with samba 3.0.22.

I only need to be able to verify users with their AD account when  
accessing a Samba share.

Can I accomplish this with Security Domain or do I need ADS?
Or is there even a simpler way?

I've been going through the How-to collection and I'm about 99% done  
with my Security ADS implementation and it works OK, I just got a  
little confused about if I really need Security =  ADS for this.

Any input is appreciated

Thanks,
Henrik