By the way, since I started this thread, I do have a feature in mind, although it's REALLY, REALLY not a big deal, just a suggestion in case you guys are looking for new ideas.
Do you know B.S. Player? it has a built-in auto subtitles search when you start any video, it just finds it and you can download the subtitle file to the folder where the movie is. I think VLC has a similar, not as powerful/slower feature like that too but it's not automatic.
Anyway, automatic or not, maybe it's something you guys will want to look into? although again, it's really not a big deal either way, just a suggestion.