I'm not too sure exactly where I should post this thread, because it covers a range of different issues, but I have chosen to post it here. I am putting together an HTPC, however I am having trouble choosing a video card. The HTPC will definitely have windows on it, however I was also considering the idea of running an XBMC live distribution as well. I was going to purchase an HIS 5450, as it is low profile and passively cooled, however I have read that ATI cards can be a pain in the ass for linux media centres. So, my questions are: 1. If I am already installing Windows, is there any advantage to running XBMC live over just installing XBMC through windows? Surely DXVA would run everything okay through windows, right? 2. If so, am I better off going for an nVidia card? 3. If I do choose and nVidia card, will it be harder to output sound through HDMI?