Oh and about how your foot should be positioned in the cage. Well. The general rule of thumb is that the pedal spindle is directly under the ball of your foot, or very slightly behind. But I've been reading around and a lot of people recommend having the pedal spindle under the center of your foot, at least for clipless (don't worry about this yet). The thinking is that since your calves produce such a small amount of the force while you're riding, might as well put less stress on them. I've personally started putting the cleats in my shoes as far back as they'll go, and I've noticed better distribution of pressure on my foot and a slight improvement with power transfer. Hella toe overlap now but whatever I'm used to it. Apparently this position is not for everyone so I dunno.

For you I'd recommend keeping it under the ball of your foot though.