Help me understand the New Avengers

Hey all, on the Avengers Story Arc ive read

The Avengers Disassembled----Civil War#1-7----New Avengers #1-60----The New Avengers Illuminati #1-5---Siege----Dark Avengers #1-6

my questions are; What happened to the New Avengers? did it just abruptly ended in Powerloss? Which stories will help me learn more about Wanda Max & Magneto? and what older stand alone comics are legendary/will help me understand more of the characters past. EX: i know nothing about Vision and Ultron.

Any info helps! And sorry if this isn't community format, i'm a newbie here!