for dialogue multiple options (and true options not 4=> i attack... 4=>i don't attack as i've seen it all too often), i wish them but i am really pessimistic about this issue for future...
We'll take Arcanum:
Intelligence: Allows you to use a higher level of language. A low intelligence limits your answers to "Eh?", "Ooooh!" and "Me bash you".
Beauty: The people's initial reaction depends on your Beauty, reputation and alignement. With a high beauty, all people you meet will fall in love with you.
There are also the Persuation skill, just like in KotOR.