Mac OSX and Windows 2000 Active Directory

I recently obtained full-time employment and one of the tasks that I'm faced
with is getting Mac OSX to work with a Windows 2000 Active Directory Domain.
OSX ships with Samba 2.2.3a, which I believe allows it to be able to work with
the older NT4 domains.

The biggest problem I'm looking at right now is getting the Mac to automount
shares from the AD servers when the user logs in and quite possibly using the AD
servers to authenticate the user in the first place. I know I can get normal
Windows Shares statically mounted via fstab entries, but don't know about Win2k
AD domains/shares.

Anyone have pointers to any docs about doing this?