Basketball Prospectus offers both the final SCHOENE projections (36 wins for the Hawks, up one from that published in the excellent Pro Basketball Prospectus 2010-11 but still not missing the playoffs) and NBAPET projections (40 wins and the fifth seed in the East for the Hawks).
Neil Paine ran three different sets of predictions at the Basketball-Reference.com Blog with the Hawks winning 44, 43, or 50 games depending on the methodology.
10 ESPN employees (including a possibly airbrushed Zach Harper) predict the Hawks to finish third in their division and fifth or sixth in the East.
At The Wages of Wins Journal, Andres Alvarez predicts the 2010-11 Atlanta Hawks the Wins Produced way. The result: 47 wins.
WhatIfSports predicts 46 wins for the Hawks.