NAR: Housing still on track for 'best performance since 2007'
Underwater borrowers, glut of REOs weighing down recovery
'Wost case scenario': 12-year supply of distressed properties
NAR projects median price will fall 3.9% in Q1
Uncertainty is recipe for 'very sluggish' growth
Unemployment not expected to peak until next year
New-home sales to be in slump until 2010