Do all of the NPCs have their own quests? I would like to know of any that don't... I have had Viconia for a really long time and she doesn't seem to have one, eighter does Minsc and I have had him since the very begining.

Viconia has some stuff in Chapter 5, not exactly quest per se, but some Viconia-specific stuff.

Some NPCs care more about some quests than others, like Minsc and Umar Hills, Anomen and Windspear Hills, and Kelsey and the Copper Coronet.

Kelsey?
Who's that? :/

Its a NPC that u can get for downloading certain mods.

Oh...I've been out of the loop for like, a year..haven't seen any new mods past TDD in beta or something like that :(

I also must say, playing after this long of time is certainly testing my memorization skills of some parts of the game :D