In combat:
For raid frames, I just use the default Blizzard ones since they seem to work well enough for me. I'd like to make them mesh better into my UI though, instead of being off in their standard location. VuhDo frames over the chat box maybe? Also, I have since figured out a way to get rid of the default Blizzard extra boss frames.
TellMeWhen setup: http://i.imgur.com/P91rr14.jpg
I prefer bars depleting so I can see a proc's duration relative to all my other active procs more visually. Realistically, I only have 4 or 5 procs going at a time so it's very easy to quickly deduce what I have and for how long.
Idle: http://i.imgur.com/rHSPDL4.jpg