Just today I started breaking in my new shoes for Wildflower half, a pair of Nike Skylons. Not that they actually need breaking in, I just need to make sure they are the right choice (fit) for me this time around. You never know now if a shoe has changed or not. My second choice is a pair of the new Saucony Azura's.
I have a pair of Nike Pegasus trail shoes and I like them but would never race in them, even for a half or full ironman, just too heavy.
Mike Plumb, TriPower MultiSports
Professional Running, Cycling and Multisport Coaching, F.I.S.T. Certified
http://www.tripower.org