Can multiple users be logged into there own sessions on the same Mac?

I am wondering if multiple users could log into my mac at the same time and have there own separate user sessions.

Here is what I am trying to do:
My wife may be logged into the mac locally. I want to log into the mac from my Windows XP machine starting my own session to access applications too. I don't want to share the screen. I want us to be able to have separate mac sessions.

Is this possible?

This *should* be possible as long as you and your wife have separate accounts on the Mac. However, bear in mind that you will need a darn fast link between your XP box and your Mac to get decent screen response from a remote location.

I have never thought about this before. Leopard's Back to My Mac feature supports this sort of thing between two Macs, but does anyone know if there is a remote access application for Mac and PC that supports exporting the Mac display to PC? Sort of a PC Anywhere for Macs?