It would take a while to list all of them!!!
Other coasters- Batman&Robin The Chiller(kinda painful), Great American Scream Machine, Rolling Thunder, Viper, a coaster in the dark (I forget the name).
Other rides- Free Fall is a 'drop-down' ride, Houdini's Great Escape (a neat illusion type 'ride'), Dino Island (or some other IMAX-type movie), Roaring Rapids, and a log flume (water ride) various spin and puke rides, ect. There are a lot of different things...I can't think of them all.
It is DEFINETLY worth the trip but, expect to wait on lines (sometimes upto 1-1.5 hours EASY). Although the Medusa line moves very quickly. I would try to get there when the park opens. It gets VERY crowded.
The Safari is also AWESOME (and I think it's now free with park admission), hit it before the amusement park opens or at like 2:30 PM (I think it closes at like 4) but, in the middle of the day the animals are usually resting in the shade.
They also have a huge water park that they just built Hurricane Harbor but, it has a seperate admission!
After just looking at the pictures of Nitro posted here
http://www.ridezone.com/oprides/coasters/nitronj/index.htmonif If I was you I'd drive A LOT further than 9 hours to ride that monster! IT IS ABSOLUTELY HUGE!!! Now I REALLY can't wait for the spring to begin!