In leopard under System prefs where change whether to have Blue or graphite appearance.. is there a way to have everything graphite but leave the "Close" "Minimize" and "Maximize" buttons on the blue theme!
You can dig really deep in the system files and I'm sure you'll be able to find the 'blue' buttons and the 'graphite' buttons. Copy the blue buttons to where the graphite buttons are, restart, repair permissions, and change the theme to graphite. That should do it.
What else changes besides the scroll bars and buttons? There is a pretty sweet hack that turns all of the scroll bars, system wide, to iTunes, iPhoto, iMovie scroll bars. Much better looking in my opinion.