In another post regarding form and proper footstrike, you probably don't need to wear minimalist shoes if you strike on your midfoot like Ryan Hall. He may not have won Boston this year, but finishing in the fastest American time EVER is an astonishing achievement. Congrats Ryan!
This video is from Peter Larson's blog "Runblogger" who teaches anatomy and runs in New Hampshire.
Ryan Hall - Boston Marathon 2010 from Runblogger on Vimeo.