Vox and Nagafen
 

My main character (50 monk) is approaching viability for the two level capped dragon encounters. Are Vox and Nagafen perma poop socked? Are they pugged? Can a newb like me sneak into a raid and actually roll on some loot?

Yeah proceed

There were some open raids a while back but they seem to have fallen by the wayside. Your best bet would be to join a guild that actively competes for them.

Many of the larger guilds have level 52s camped out at their spawns. There is rarely an open Nagy or Vox raid, so your best bet is to join a guild that specifically targets these mobs. I think Paradigm Shift and Kittens tend to kill these dragons pretty quickly upon repop. I'm sure there are others that go after them, too; it's hard to pass up White Dragon Scales, Bladestoppers, etc.

Just send a message to some <Core> members - I'm sure they'd love to share a kill or two!

Vox usually stays up a little bit but there aren't public raids and a guild that does it probably won't let you roll on loot since they'd be doing DKP or LC.

Definitely don't stop leveling for them. Your best bet is to join a guild that does them and just level up an alt just for that purpose.

Level up and kill Talendor, Severilous, Gorenaire, and Faydedar with a guild if you want most Naggy/Vox loot (burnt or frost covered book, CoF, RBB, scales, etc).