Choosing running shoes need not be so complicated. While certain shoes make sense for certain injuries (e.g. wider toe box for hallux valgus), the idea of prescribing shoes based on arch height and "over"pronation has been tested in research trials and has not shown any clinical success. This video attempts to steer runners through the fog of misinformation.
Dr. Kevin Maggs D.C.
Treadmill from http://www.blendswap.com/blends/view/72713