You can't be Noober. There is no new post for hours!
The EEs already come with lots of gameplay improvements and new NPCs with own quests. My rcommendation would be to play the EEs unmodded first to see the new content and features if you haven't already.
Unfortunately, modding the IE (Infinity Engine) games is not trivial with regard to install order and compatibility. This is also why there is no overall list for this. We can give recommendations but it will always come down to you having to read up in the readmes to see whether it will be to your taste (and also to look for installation hints).
Just a few things to start you off:
There is an EE Fixpack in the works here but it is not ready for release yet.
Tweaks Anthology is the biggest and best known tweak pack.
Unfinished Business for BG1 (bg1ub) restores cut content from the BG1 game. There is also Unfinished Business for BGII (UB).
Here is a pretty up-to-date mod list. It's for the (modded) platform EET (Enhanced Edition Trilogy), but unless a (BG1) mod is tagged for EET-only, it should also work on BG:EE.
There is pretty nifty mod lists for EEs here, albeit in Polish: BG:EE (SoD), and BGII:EE (tagging @Cahir to make sure I'm not linking the wrong one)
Overall mod sites from G3 is here (you probably already found this), other known modding sites are Spellhold Studios (forum is currently down), Pocket Plane Group, EDIT Wesel Mods for @Lava's mods, and also Kerzenburgforum (German site where I am active).
For installing mods, there is a tutorial here. There is an automated installer called Project Infinity if you have a larger list of mods you want to install.
And, to make my recommendations complete: