I’m going to be purchasing Zbrush soon as I have absolutely loved the work from individuals on this site for years, but now I feel like I’m ready to get involved. My ultimate goal with my creations is animation, so are there any tips for the first set of tutorials I should do and any other tips are greatly appreciated as well! Thank you! Looking forward to joining the ever-growing field of artists.
http://docs.pixologic.com/getting-started/finding-your-way-around/
Read until you know it and keep reading all linked pages.
Forums are searchable with many answers 
Is it difficult to rig a model and begin animating it once you transfer it over to something like 3DS Max? Or do I even need to buy a separate program like 3DS Max? Isn’t there a built in rigging and animation toolset in ZBrush?
You can rig and pose in ZBrush and there is a timeline. Blender is free, it can do lots. Rigging takes practice and patience in any software.
Alright great, thank you for the hasty answers!
First one. Lol I’ll change my statement to “Thank you for answering my question with such haste” lol