I just bought me an 05 GTP CompG, it has 80k on the clock and I was wondering what all I should maintenance on it? I know some things but not sure on some others...

-Supercharger oil?
-Spark plugs? (not sure how many miles they go on a SC'd engine)
-Belts? They dont look cracked...
-Air filter is K&N and looks good..
-Tranny fluid I doubt has ever been changed, it's starting to look a little on the darker side of red...
-We all know about engine oil.. LOL

Anything I'm missing?