Viewing Multiple Domains

I have set up 2 domains at home w/ 4 clients. DC’s are running W2K Srv and clients are running W2K Pro or XP.
When I look under AD, I would like to see both domains – is this possible.
I can see all under Network Places, but would like to be able to manage both domains, computers and users from 1 machine.
Please advise. I know this should be easy for me, but I have yet to see any thing on the MMC to point me in the right direstion.

Thanks