Alright. Morrowind GOTY installed, runs just fine (of course).

Have MGSO (latest) downloaded, and a few various voice addons for important npc(s).

What else do I need to make Morrowind a bit more modernized?
By that I mean better graphics, better sound, possibly better animations?

Also, as far as voice addons are concerned...what are the good ones out there? I know not everything can be voice acted but I'd like the important characters to at least have some audio attached to their words. haha.

Or will MGSO suffice as far as graphics go?

I can't say about MGSO since I haven't play it yet, but http://www.gamesas.com/topic/106063-morrowind-mods-faq/page__view__findpost__p__3375089 is some useful links and this http://www.gamesas.com/topic/1305729-mod-recommendations-for-new-players/ is a must for those people who need to *upgrade* Morrowind for more immersion game play.

Have a look on PES for Voice Addons. From memory Vivec, Dagoth Ur, Almalexia, Barilzar and Dagoth Gares were done. I dunno what's in MGSO but based on the name I think your sound and graphics is catered for.

But definitely check that Mod Recommendations for New Players thread Leonardo2 linked to.

Im definitely not a new player, been through all the games thus far. Just want to revisit my favorite one.
Skyrim is just...dull to me. hopefully that mindset changes with the CS and mods to improve it

Anyways, thanks a lot! ill check those out

Perhaps Pluto's Mod Recommendations for New Players thread need a new title - Mod Recommendations for Any Player

Anyway those threads I linked to cover most information you need to know about a modded Morrowind.