There will be plenty of thingame jiggers you can and will add, but definately get something for collimating. Mine was out enough to make my first two sessions very dissapointing
I eventually bought a laser collimator and find it easy to use especially after watching this vid
http://andysshotglass.com/Collimating.html
Eight AA batteries for the fan and you should be enjoying your first night out with the new scope. SHOULD be, but it will cloud over and most likely rain for a week or two
Cheers Brad