Sam, haven't you implemented the leaf guidance of bearshare? I though it was. Or are you talking at the search level (ie no protocol variable to define size of files)? Anyway, I think many users would like that feature (including me). An other variation (at the interface level this time, but less powerful as it don't increase the number of big files found) of that option is a size slider that you move to the right to show files in your search that are bigger than... (a kind of a search filter, it might be difficult to implement in java, but many P2P on os x use this).

Merci