Well....
there is this:
http://igame.amigahellas.grYou can consider it as being usable, but it's still in development (when time permits :-) )
The version on the site, pretty much does what it should, i.e. scan your disks for games, and presents them in a list. You can then double click on a game and it will start. It will also read the game's tooltypes, and the search-as-you-type filter also works.
The program is beta, and may require some stack size but it works. Right now, I have a new version on my HD which also shows a screenshot from each game (
http://machina.amigahellas.gr/stuff/igame_dev.png), you can edit it's genre, add a non-whdload game to the list and other stuff. The screenshot stuff looks good on my gfx amiga, but I'm not sure what it's like on pal miggys.
Anyway, that's all, hope you find it useful, I'll try to get the new version there sometime in the next days.