First off let me say that all those minor unit frames and action bars in World of Warcraft are giving me headaches. I'm talking about the pet, focus, and target's target unit frames. Also, the stance and pet action bars are annoying me. I want the UI to look balanced and simple whether I'm off fighting baddies or crying my eyes out on a park bench. See below.
You can tell from the screen cap that I moved the PitBull player and target unit frames side by side. You can't see it in the example above, but the pet unit frame is to the left of the player unit frame with the focus unit frame above that. If I don't have a target selected, the UI looks off balanced. However, this move lets me position the Quartz cast bars above the unit frames instead of to the side. I found that when I was playing the game I was watching my cast bar closely to perfectly time my next spell. Big increase to DPS but my eyes were too far off the action in the middle of the screen. Function will always trump style.
I tried a few different spell timer addons and picked ClassTimers because of easy setup and breadth/depth of features (my mantra). Like player and target casting bars, a buff/debuff timers are critical. For example, I can see at a glance how long I have until my sheeping or rooting wears off. ClassTimers gets high marks because I can place separate timer bars for my character, my target, and my focus. The screen cap isn't a good example.
The stance and pet action bars will have to wait. I'm not happy with how tight the bottom of the screen feels. I want to keep the action bars and unit frames centered, but then the chat frame is squished on one side and there is dead space on the other. You know what would help is a widescreen monitor. Hehe. Think I can convince Avril it's a necessary family expenditure... instead of say new tires for her car?