I have a mac pro that serves an iTunes library to 2 AppleTV's. All the files are Handbraked as "Apple Universal" mp4/m4v files. Work great with the AppleTV's. I got a free HTPC that is pretty nice, it has Win7 ultimate. It has XBMC installed on it. Here's the problems I'm having: 1. I cannot browse the OSX computers on the network to view any files or folders. I can view the Win7 computer and it's folders, but not the other way around. 2. I installed iTunes onto Win7, and it shows my shared Mac Pro library. It will play music, but not any of the video files, which are all MP4 files. Will windows play an Mp4 through itunes, or will I need a codec pack or something of that sort? I know there's gonna be alot of hassle connecting Win7 to OS X, so anyone got any tips so I can use this HTPC as a glorified AppleTV?