1: Is there any tutorial for converting head meshes from Oblivion to Fallout New Vegas? I've found one that works for hairs, but I still need heads.
2: After I finished converting the hair model for New Vegas, it showed up a bit off on the character I put it on, I tried to change the transform to move the location of the hair. It just messed up the hair even more in the Geck, and I found out that X moved the hair along the Y in the Geck, while Y move the hair along the X. Is this normal, and will it look odd in-game, or how it looks in the Geck.
3: What is the use of FNVEdit? I've been using it, but overall it seems like an over-complicated version of the G.E.C.K. Is there something it can do better than the G.E.C.K.?
I may post more question later. Thank you.

Regarding FNVEdit, Some simple things that GECK can't do.

1) Show all elements of a particular mod (GECK shows everything from the mod + falloutnv.esm. Need to sift through them to find the parts pertaining to the mod).
2) Change File Header stuff --> Edit Author/Description anytime. GECK crashes if you try to do that in GECK.
3) Change an ESP to ESM and vice versa.
4) Clean up a mod by removing records identical to the master (FalloutNV.esm in most cases)
5) Batch copy elements (armor, weapons etc..) between mods.
6) Compare changes to a record made by a particular mod to its equivalent record in the master.
7) Create a merged patch.
8) Much faster ESM loading. GECK takes a very long time to load a particular plugin file.

That's all I can think of now. Do not underestimate it just because it lacks a more GUI-like interface like the GECK.

It's the console equivalent of GECK