I'm in the same boat. Was looking at PRISMIQ's Media Player. Have you looked at it. I've seen it rated fairly high.
I was thinking aboutgetting something like the D-link DSM-320
or Hauppauge MediaMVP, but neither have very good reviews either because
they acted inconsistently w/ different file types or streamed low-quality
media. the Turtle Beach AudioTron got rave reviews, but it only deals
with audio files (albeit very well). If anyone can point me to a good
device that can stream both audio and video from an external hard drive,
I'd greatly appreciate it!