Sorry if I sounded too mean in my post, I just noticed that I didn't point out anything I liked (which was, frankly, anything I didn't point out!).

unit frames: I can understand where you're coming from, so just do what you find best, and take my comment as my opinion (which yeah, it is). If you like it the way it is, go for it!

As for % health: I believe there is a feature in text for Stuf to only show text at X_HP or whatever... though I don't believe I ever got it to work properly, so maybe its better off as is... I only ever needed it on my Warrior, so it wasn't a top priority for me.

threat meter: I have the threat meter showing on my Stuf as well, I was just lamenting the fact that its not aligned with the target frame, that's all.

action bars: Trust me, I know how much of a pain it is to get them all settled down... I'm still not 100% happy with the way I have mine set up (1 long bar, 2 smaller 2x6 bars on top), but I think that having them all together in the same place would make for less eye-roaming.