New home builders finally got a little wind under their wings this month. The National Association of Home Builders (NAHB) said its NAHB/Wells Fargo Housing Market Index (HMI), a measure of builder confidence in the new home market, finally broke out of the low 60s where it has nested since the first of the year. The overall index rose 3 points to 66 in May, its highest level since October of last year. "Builders are busy catching up after a wet winter, and many characterize sales as solid, driven by improved demand and ongoing low overall supply," said NAHB Chairman Greg Ugalde. "However, affordability challenges persist and remain a big impediment to stronger sales."