I have a great idea of a plugin which I call Ultimate "Now Playing".
Because while listening songs, there is no reason to see entire media library and playlist which takes so much space.
So after adding songs to playlist, this plugin could open in FULL SCREEN either automatically after few seconds of inactivity or by pressing some shortcut.
And there would be all informations people would like to see: BIG FULL HD album cover on the left, and then on the right at the top there would be info about song (artist, year, album, title, genre, bitrate...) and basic controls.
Below that, there would be synchronized lyrics just like one awesome plugin called "MiniLyrics" does.
Those lyrics would be big, so often, not entire lyrics would be shown, therefore they should automatically scroll just like MiniLirics does it

But it would be good if person could also scroll it manually with mouse wheel

And then if you want to go back to Winamp, you would just press Esc, and you will be back in Winamp

And MiniLyrics already is automatically downloading good lyrics from it's database, so there would be no reason to implement it

We could just use MiniLyrics to download lyrics to .lrc file and it could just read from that file.
Or even better thing would be, if we could tag it to song's ID3 tags, then we don't have to have these files in music folders... And also that album cover should be read from ID3 tags

A already created an image of how it could look in Photoshop, so I will post it here.
Also I will post a screenshot of my Winamp how it looks now, if you are interested
[edit - dro]External links to images have been removed & optimised copies have been attached in their place.