I'm planning the TV / PC layout in my house at the moment and have a quick query regarding media center!!

I plan to have 2 TV's downstairs and 1 up, all with which I want Media Center on. Having looked on AV Forums it seems that I need to have a PC beside each TV (well, pc's in loft and one cabled to each TV), no problem at all.

My question is that will I be able to connect all 3 PC's to my HDD (which is an external 1Tb Lacie Ethernet disk) which sits in the office? (ie - will 3 media centers syncronise ok with 1 source?

If so this seems the best way of storing my films / albums in one place, rather than having to copy all of them onto each pc etc etc....

Chris