Soldato
I've recently started using Plex and find it amazing. It was really simple to setup and I'm able to stream videos at 720p through remote wifi and can even get it at 720p with a decent 3G connection
It's a shame it won't (currently) play DVD format files, which is what my movie collection mostly consists of. Reading the forums it seems it used to, but for some reason doesn't at the moment, be it a bug or otherwise.