March 18, 2009 11:00 am George Chamberlin's Wednesday Business Report CNBC‘s Margaret Brennan reports that International Business Machines Corp. is in preliminary talks to buy Sun Microsystems Inc. for at least $6.5 billion. US & World Videos 3:56 San Diego Police pursuit policy under review after crash kills 2 brothers 2:55 SDPD pursuit policy under review after crash that killed two young boys 1:30 National City Starbucks workers want to unionize 2:38 Shoppers react to local Walmart closures in San Diego County 0:47 J.M Smucker Co. to buy Hostess Brands