OMAHA Warren Buffett is now sitting on more than $325 billion cash after continuing to unload billions of dollars worth of Apple and Bank of America shares this year and continuing to collect a steady stream of profits from all of Berkshire Hathaway's assorted businesses without finding any major acquisitions. Berkshire said it sold off more Apple shares in the third quarter after halving its massive investment in the iPhone maker last quarter. The stake valued at $69.9 billion at the end of