voodoo47: if you deselect all the mods, you will get very close to vanilla. you will still get improved models for the AIs and some items - as the original ones were unfinished/partially broken, I have decided to replace them with ones LGS has released later. also, the Cragscleft sky will still be replaced, as the original texture is just too ugly and broken to be fixed in any sane way.
if you want a "balanced" set of mods, I'd say go for everything with the exceptions of the texture pack (Thief2 textures, they bring the game look closer to T2, and while I personally like this, some people don't).
So what your saying is that if you disable the mods in Tfix, the only fan change is the Cragscleft sky? Also were the updated character models released through the DromEd editior?