I didn't suggest a Mac mini because that's sort of the HTPC I thought Roger wouldn't want. Having to get another machine instead of using a piece of software intended for a machine you already have. Though I suppose one with a PS3 doesn't necessarily have an Xbox...

Orb is another app that does streaming to most devices.

If I was going to go the mini route I'd probably use the mini as the server/media machine and something else for the playback. WD has a streamer for under $150. At under $300 I'd still suggest the Sage Theatre with their HTPC/server software running on the mini to serve everything up.

I think it's going to be longer than the end of the year before we see those low-priced NVIDIA Ion systems able to compete. They all seem to go for a lot more money right now.