I found what i was looking for! Check http://www.waimea.org/
the Waimea window manager! It resembles blackbox, but it's code was hacked a LOT. It has the option of transparent window borders and menu, check out http://www.waimea.org/shots/waimeaSS-67/shot.png
to see what i mean, isn't it beautiful? However the developers of Waimea made the configuration a pain. I'm not able to simply copy my fluxbox menu and init file because the syntax is slightly different. In addition waimea has some weird options and doesn't feel as stable as fluxbox, so i'm back to fluxbox, also because i don't have time to rewrite my menus. Another thing i dont like is that there is no slit and no toolbar. There is a dock which is the same as slit, but its a pain to configure correctly.
I wish fluxbox developers added transparency options.. I posted my request on their forums, but the forums don't seem to be alive...
What do you guys think about this? Fluxbox with more transparency options?
Neo7777 thanks for the file manager help, it was GMC indeed, very nice.