I am having choice of using the operating systems. I have to select between Windows OS (Windows XP, Windows Vista or Windows 7) or MAC OS X. The main thing for me is to download. So I will be using the uTorrent application for downloading the torrents. I am not having idea that which OS is better for utorrent. So thought that you guys must be knowing about it. Please tell me which OS would be suitable for utorrent speed.?