This is my current UI for my rogue. it's very simple, nothing fancy.
I actually have my bars with bound abilities hidden, and have a 3rd bar showing all my abilities with cool downs.
Like I said, nothing special.
Mods used:
ag_UF (unit frames)
Bongos3 (action bars)
Trinketmenu
Koordinator (coordinate mod)
Lightheaded (wowhead addon for quests)