i'll wait until all of FNV's textures are HD'ed. a lot of stuff will look out of place when some stuff is high res, but others low res by comparison. also, FNV's textures have probably been changed too.
FNV's HD texturing will include nearly all of these plus some more. If you want to uninstall it afterwards then you can run the uninstall script that is generated during the install process.
ive been using the NMC packs for a while and there are some areas that you can see the distinction between the to and it is stark. that being said overall the game world looks much better with the pack. its a choice basically between having lots of good textures with a few bad ones or having nothing but bad ones.
Yeah, I can't play without this texture pack because it really helps you immerse yourself in the game. It's nice to walk up to a door and it looks like wood rather than a picture of a picture of a picture of wood.