When I finally purchased Morrowind for the PC I foolishly purchased it on Impulse without realizing that they changed the exe and therefore the impulse version doesn't work with some popular mods.
So are there any must-have mods that will work with impulse? Or will I have to buy a hard copy off of amazon (I refuse to use steam)?
Not sure (http://www.gamesas.com/index.php?/topic/1106787-is-the-impulse-release-of-morrowind-goty-compatible-with-mge-and-etc/ inconclusive thread is all I could find). Most mods won't care about the executable (although I doubt you'd be able to patch it using the Morrowind Code Patch). You may need to redate your BSA files if their dates are reset as the Steam ones are. See the first post in the http://www.gamesas.com/index.php?/topic/1204129-morrowind-graphics-extender-mge/. I think the BSA file dates would be your biggest source of potential mod problems.