Interesting point about the Apple Home Sharing, I had no idea it had that 'same account' restriction.

I've got a HP Media Server at home that has some software widget that hoovers up all the iTunes content on our PCs and shares it out as a Shared Library in iTunes. I use the server mainly for backup, but the iTunes aggregation is a nice little extra. However the HP box comes with a hefty price tag.

Someone must already have something that can share iTunes content out across a home network - any ideas of alternative software that will do the job?