Stock Futures Flat Ahead of Data; Dell Up  NEW YORK (Reuters) - U.S. stock futures pointed to a flat  market open on Friday,  pausing after the previous day's big  rally, as Wall Street awaits key economic data, though gains by  computer maker Dell Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=DELL.O target=/stocks/quickinfo/fullquote"&gt;DELL.O&lt;/A&gt; in overseas trading following  its earnings report could help technology stocks.