Fubar is what I use to get rid of all my minimap buttons, a lot of mods have either a separate Fubar plugin or an option "Attach to Fubar". Which minimap buttons can't you seem to get rid of? The only mod I have on minimap instead of Fubar is Bejeweled Another option could be to just use slash commands to open menus if something won't attach itself to Fubar. Sorry I don't know of another Fubar like mod (apart from Titan panel of course), just trying to give some other suggestions to clean up minimap.

Skinner is good for giving the black bar at the bottom (and top if you like) of the screen, and will also give all the ingame panels (character page, quest log etc) a smooth look. The panels it creates don't have to be black either, and you can turn off all of its features apart fom the bottom black bar if you so desire.

I'm looking for an Addon like Quartz but with an option to view & edit the castbar of the target's target.
Is there any posibility to modify Quartz? E.g. replace the Focus castbar to a TT castbar?

kgPanels is what you want.

The debuff addon he's thinking of is Demon. It has a thread here on EJ, but looks like it hasn't been updated in a while. Since the same type of debuff is applied by different classes now, I guess this won't work now. If someone were to make a textbased debuff monitor that would be pretty sweet.