Originally Posted By: tahir
SlimDevices and the Empeg/Rio products are the only really well thought out and (for the most part) executed products in their sector, apart from the iPod (that I've seen anyway)

I'd have to add Tivo (and possibly ReplayTV) to this list. The modern Tivo has music-playing that appears to not suck (haven't really used it much yet), and it has output to your TV, which is always nice. Of course, you don't get any multiroom goodness.