I would pay off my student loans, give some to my brother (he's a huge saver, so I know he'd invest it), go on a small shopping spree, and invest the rest. You've got to have some fun with some of it!
I would probably purchase a couple of pieces of property also - real estate is definitely a money maker. I would definitely buy a new car as well.
OH! And I'd get my little guy (Ferdinand) another yorkie to play with.