I really admire some of the UI's people post that have all the controls pushed down to the bottom neatly, leaving screen bare above.

My UI has everything pushed to all the edges, leaving a clear spot in the middle where I can actually see the game.

What tools to you use to build those UI's I admire? My only addons are:
Omen
Quest Helper
Grid
Bartender
TitanPanel
Jamba

Thanks,
Matt