Thanks for the reply. I am also quite excited about Columbia. I also applied to MIT - OR (reject), Harvard - PhD Business Econ (reject).
I have about 7yrs work ex in wall st (equity research, portfolio mgmt & prop trading), currently in UK (start up venture for the past 2 yrs). Acad - BS(EE), 3.9 gpa, 760(Q)/540(V)/4(A) - not the best of scores!