Warren Buffett's Berkshire faces banking challenges in Q1.

Warren Buffett's annual meeting for Berkshire Hathaway shareholders on May 6 is expected to hold more importance than in recent years, as it will be the first time markets will hear from the 'Oracle of Omaha' on the banking crisis. With $130 billion in cash, any word on bank valuations, if Berkshire considered doing deals for troubled regional banks, and government actions to save financial institutions will carry tremendous weight. Buffett's knowledge of the banking system further ups the intrigue, as he saved Solomon Brothers in the early 90s after a trading scandal and gave a lifeline to Goldman Sachs during the financial crisis.