Hey, This is a help call, In the future, I will be looking for a Media Server, namely a Mac. I want to use it to store all my iMovie projects - mainly iSight or DV format, very little HD, stream them to my Main Mac and also to a couple of Windows PCs (not mine), and maybe preview a smaller version (640*480 or 720*480). I am thinking that Mac OS X 10.3.9 or 10.4.11 will do. Especially as I use iMovie '06 and might use an older version of iTunes. I want to use an older PowerPC PowerMac to do this, can I get away with a G4 running at 400Mhz with 512 MB RAM, or do I need a faster G4/G5?