S&P 500, Dow to open slightly higher on Mideast deal hopes; chip, software stocks tumble
By Johann M Cherian and Shashwat Chauhan Aug 6 (Reuters) - The S&P 500 and the Dow were set for a steady open on Thursday, building on this week's record rally as investors awaited details on a Middle East peace deal, while Nasdaq futures slipped as strong forecasts from Western Digital and Sandisk 
