AppleTV2 front end with Windows back end?

Hi All,

I have XBMC running on my AppleTV2, but I want to set it up with a server, with a view to running the back end as a PVR with the next release of XBMC.

Can I connect my AppleTV2 to a Windows box running XBMC (as the server)?
If this is possible, are there any issues which I should look out for?

I'm thinking about getting an HP Proliant micro server, since they're cheap, low power and have expansion for a TV card.

Thanks in advance for your comments/assistance!