Google and Yahoo offer snapshot quotes. I am looking for intraday data in such form
date, time, open, high, low, close, volume
03/25/2010,11:23,201.63,203.89,200.92,202.93,1400
03/25/2010,11:24,201.93,203.90,200.02,201.93,1100
03/25/2010,11:25,201.83,202.89,200.11,201.55,1200