<< Is it unreasonable to expect 6% from a bank for 10 x $100,000 fdic insured accounts? >>
If I recall correctly the FDIC only insures each account holder up to a maximum of $100,000, not each account, which means you can have as many FDIC insured accounts as you want, but you're only insured for a total of $100,000.
As for what I'd do with a million bucks, I'm not greedy. Since I'd only be left with about $650,000 after taxes, I'd have to put all that money to work straight-off instead of trying to live off the interest. I'd be looking for a reasonable long-term investment strategy that would double my money in 8 - 10 years, nothing more aggressive than that. In 10 years, I could live off the interest from $1.5 million.
Then I would splurge on a house, car, etc.