Great Player
Movist has come a long way. Version 1.02 was pretty slow and lacked some features. Now with Version 1.2.3 its just great. Great subtitle support, H.264 Video decoding acceleration (also works with x.264), customizable shortcuts, etc. BTW, Movist can use an external USB sound device for playback. Im using it with the M-Audio Fast Track Pro without any problems. You need to disable the "Change system volume" setting in the Movist Preferences.
Mooooodle about
Movist, v1.2.3