Totally enjoyed playing around with Maktub's Po2 code, cleanest UI I have ever seen and that doesn't even get into the increases in performance. Changes here are a combination of personal preference and raiding from a caster perspective.
Changes from Po2:
General Changes
-Updated to Power of Two 1.1 base and compatibility
-Added Infinniti style buttons
Target Window
-Added Target HP
-Added Spell Casting Gauge
-Added Optional Target Windows that include Timers
Player Window
-Added Player Name
-Added Current/Max HP
-Added HP percentage
-Added Mana percentage
-Removed energy/fatique gauge
-Added an optional Player window that eliminates the Target window and adds many stats.
Hotbutton Window
-Added Current XP (percentage)
-Added Current AAXP (percentage)
-Added 15 Inv Slots (very easy to change)
Social Window
{change to default Po2 buttons have me putting off some changes here}
Group Window
-Added Group Members HP percentage
-Added optional Group Window with FKey prompts
Compass Window
-Added Arista style compass with +-0 notations
-Added Arista 1 hour timer
{Compass mod adds one graphics file, but eliminates the need for one Po2 graphics file, so no additional graphics space. If you don't want the timer (or the timer animations don't work well on your hardware) simply copying the original Po2 compass xml file will restore, making the compass window less deep. No need to move the graphics files, only the ones needed are used}
Buff Window
-Changed to fixed sized vertical. Window has a frame and can easily be moved.
-Stole Ravenwings buff # ideas, making it easy to see buff count
Chat Window(s)
-Changed window template to a non-title template
-Windows are still resizeable
SpellBook
-Basically liked Bijaz's Aya style layout
Download from:
http://dl.dropbox.com/u/5870913/WizMod06_UI.zip