@M.A.R. While the final fight (I finally got to it ;)) Can take a lot of potions, a lot of them last for a good while, or can't be used by all. Still important issue is you can take much of your equipment into this new Dragonspear thingy of Black Pits. So, I guess, saving some stuff could be a good idea.

I'm not enthusiastic about these new add-ons. Hmm, there's also option of going directly to BG 2, but only some things can be imported, afaik.