On the brake lever positioning:

If you ride the hoods (when you get some), I'd go up about 1/2 an inch.
You don't want to go too high, but you want a comfortable place to put your hands when on the hoods/tops.

If you ride the drops, I'd go down about 1/2 an inch. I like the "horizontal" advice given earlier, but as a drop bar rider, I mount the levers a bit lower, so as to brake with my two middle fingers. Also, as a drop bar rider, I like the drops to be almost parallel to the ground, depending on how long the drops are. Yours would be about right for me, but the length of the flat part of the drop is pretty long, so moving your hands around will result in pretty much the same pressure points on your hands. Altering that a bit can help to give you more options on hand placement.

Let your riding style dictate, and feel free to move the levers around to your comfort level.