It would be nice if you could see a thumbnail of a video file like windows XP does in Windows Explorer in thumbnail view mode. Perhaps have a right click menu in the search results window to "show thumbnail" would be nice vs. downloading the file to find out it's something you never wanted in the first place. I don't see that this would take much CPU usage or bandwidth seeing most sharers of larger video files have broadband connections. It's something that limewire could cache when building the library. Or to even improve on this, be able to choose which # frame you want so that it can be random as a lot of video file's first frame is just black.

Or, have limewire auto preview video files after 10mb is downloaded. Just tag which files you want previewed. And in the case with Avi files, fix them so you can preview them as well. I know you can do all of this manually but it would be nice if it were automated.