ZoombarPlus helped with my scrolling problems. it changes it so that the zoombar on the bottom can scroll and select on screens that dont already use the zoombar for other functions like Opera or Excel.
Also add
Conflipper Weather Database to get all US cities. It slows down the process of adding them since there are so many cities to load, but just type in your city name and it should show up after a little while
Also s2u2 does work and is actually a battery saver for the same reasons you mentioned. i have it set to turn off after 5 seconds if the screen is unlocked and if the proximity sensor is blocked it does not turn on at all, so if it's in my pocket the screen stays off permanently. You can even set it to unlock when the proximity sensor is unblocked so if you pull out your phone it will unlock automatically. But i consider it a must have for a power setup like yours