http://pastebin.com/StMXKkyL
Contains code for creating statusbars, for both health or power. Didn't add arena support, but I'm sure if someone wants to he can add it easily.
http://imgur.com/WyjOcsW
Frames can be dragged via shift click. Dragging is enabled by double click on the frame.
statusbar.classcolor = true
to add classcolor for healthbars
Examples to create bars like in screenshot are included in code. If you name the statusbar, blizzard UI remembers the spot without having to use savedvariables manually too.