Bah! You people are so closed-minded! Why are people always so afraid of trying out MODs? I assure you some of the new MODs coming out will actually have BETTER storyline and BETTER AI than some of the stuff Bioware made (although of course thanks to Bioware for making the engine
).
And Memnoch- they don't need to backup their .tlk. Use Infinity Engine Mass Converter from teambg to convert all items, cres, spells etc. to TBG format. THis stores all the text related to them from the .tlk and then just import them again when the .tlk has been replaced.