Vista Buisness and Xbox 360

I have Vista Buisness Edition, and I want to install it on my PC with CP
Pro...the comparison charts show basically no multimedia functionality in
Buisness Edition. Right now I can stream music, photos and videos from XP Pro
to my 360. Will i still have those smae features when I upgrade to Vista
Buisness ? If not I might have to wait until after I build this new PC and
just go with Vista Ultimate for the Media Center Capability.