Have you a external Hard disk on your 360?>>

[Phemo]

So whats the advantage of using one of these external hard drives to streaming it all from your pc? Is it just that the pc needn't be on?

I have a 40GB 2.5" USB drive plugged into my 360 so that I can play music from it while I'm playing games - you can't do that from a PC, only while in the dashboard. I'm aware that I could just rip the CDs to the 360 hard drive but I really couldn't be bothered and had a spare 2.5" drive/enclosure anyway.