So I'm gonna start my playthrough of Fallout New Vegas and was wondering what mods to get to make my playthrough even better than it will be without mods, and any other starting advise because I know games like these can be confusing at the start also I like Star Wars so any good Star Wars mods would be nice.

Here some essential mods that I use:

NV Interiors Project (Nexus)
Imperial Radio Broadcast (GUNetwork)
Lazarus Project (Nexus)
NCR Trooper Overhaul (Nexus)
Nevada Skies (Nexus)
Realistic Headshots (Nexus)
Return of the Eyebots (Nexus)
Real Recoil (Nexus)
Weapon Mod Expansion (Nexus)
Stormtrooper Armor (GUNetwork)

I got most of them except for the stormtrooper armor because I couldn't find it and I didn't get Imperial Radio Broadcast because when I hit download it said install something to "Stop google from tracing you searches" wich I did not download because well that is fishy. Thanks for the suggestions (I got Mojave Stormtroopers so I do have Stormtrooper armor) EDIT I must have gone to some other line I downloaded the Imperial radio Broadcast

Dragbody mega pack, project nevada, wmx,Mojave terror,vertibird player home , caliberX.
Among others, you can find here or in the nexus mod

These are the ones that I use a lot:

Spoiler:

Hello, @LightSabersEdge!

First of all if you want a good modded and stable fallout check this guide: http://wiki.step-project.com/User:EssArrBee/FalloutNewVegas

Then you should check all available for non-colonial users Fallout mods on GUN: https://www.gunetwork.org/t12515-mod-master-thread-release

If you really "crazy" with SW theme mods then Cpt.Rex releases for you!

Happy modding.

@gentledamnspy @LightSabersEdge On that note on a modded game's stability, I recommend getting LOOT and FNVedit. 

LOOT sorts out the load order for you ensuring that no mods conflict with each other.

FNVedit helps you manually create merge patchs for mods which also helps with conflicting mods.

Do any of you know of a big weapon pack? I saw one when I was looking a while ago but I don't remember the name.

for the best waepon packs i'd go with millenias pack and fallout classic waepons.
you will havw lots more to shoot and a lot more weapons shot at you.

Project Nevada (nexus) now you can sprint, slow down time with action points, throw grenades with a hotkey, and much, much more. It also has a bunch of customization options to tailor your game the way you want.

NMC's Texture Pack (nexus) The best HD texture overhaul for FNV

Nevada Skies (nexus) Great weather mod that adds a bunch of new weather types, from sand storms to rad storms to thunder storms it's fucking awesome.

New Vegas Bounties I and II (nexus) you basically accept contracts to kill bad guys, and the enemies get tougher as you progress

Definitely have to put Caesar's New Regime and NCR rearmament (both nexus) up there since it makes me want to take both factions seriously now, I can understand how it's not for everyone though.

Animation Project (nexus)
Saxxon's Quest collection (Nexus)
Autum Leaves (Nexus)
Any and all of dragbody's armors (both GUN and Nexus)
A world of pain (Nexus)
Weapon mods expanded (Nexus)
Unforgiving Combat (Nexus)
Flora Overhaul (Nexus)
Increased wasteland spawns (Nexus)
Project Nevada (Nexus)
Fallout New Vegas Redesigned (Nexus, read installation carefully)

Those are just off the top of my head, but they're essential for me.

The secret bunker mod on nexus by Xeonerable is one of my favorite house mods of all time.

Most everything else I use hase already been posted.