Assuming a big win, in no particular order:

• Get it all at once, even though that means less
• Put 1 mil in a high-interest savings account
• put 1 mil in a CD or something for 25 years
• Pay off all my student loans and put aside enough to keep going to school indefinitely
• Go to tall the doctors and fix everything wrong with me
• Send some to my parents and my sibs
• Put aside enough that I don't have to work ever again if I don't want to
• Set up a trust fund for my kids (who aren't born yet, so it should be a good one)
• Start traveling, and see everywhere I want to see
• Make a big donation to something I really believe in
• Find somewhere perfect and start building my dream house there
• Invest wisely
• Start using those tax loopholes rich people always seem to get