Default [Q] Longtime IOS jailbreaker turned Android Noob..so..where do I start?

Hello all! I'm new to android and have been doing my research on the forums, youtube, google, under rocks, voodoo doctors, you name it. I've been able to grasp some things but many questions remain. phone: AT&T Note 3 on KitKat

1) Since it's not possible to root kitkat without tripping knox, what exactly do you lose in the warranty?
2)Which root method do you suggest if I plan on utilizing all what the custom rom/firmware world has to offer?
3)Is custom recovery meant to assist with the knox issue?
4) Can anyone direct me where to find certain tweaks/roms associated with reversing some of the KitKat bugs? Like the sdcard issue, the sview issue, and anymore important ones?
5)Is there a noob friendly faq on how to download roms on the phone and etc? Possibly a list of definitions?

Any and all links are greatly appreciated. I'm sure after a few weeks I'll be more accustomed to Android and all the ups and downs.
Thanks to all in advance!