I live on Long Island, and I've flown twice since 9/11.
Honestly, once you're in the airport...it's all very familiar. Get there early, security may or may not take awhile.
To tell you the truth, the security in Florida was a bit better than in New York. I know you don't wanna hear that, lol, but NY's security was good, it just wasn't as extensive. They searched me in NY AND Florida, but in Florida they make me take off my shoes and they searched my carryon. A bit annoying, but it's not like I had anything to hide, and its for a good reason, you know?
They often search random people, so don't give them a hard time if they search you. Once you're in the airport, it's just like it's always been, just with way more security.
Are you flying Jet Blue? ITS AWESOME! lol thats all I have to say about that.