While I am not their largest fan, have you looked into windowblindz? They are kinda the one-stop place for alternate windows skins. I use to use them all the time back in the dark and ugly days of XP, but after moving to win7 I just select the color to white, and turn the opacity nearly to the bottom (almost completely transparant). Then in the advanced settings I turn the font headers to as small as possible while still being ledgable. It makes windows very "out of the way" so that I can focus on what I am doing.