hey raze, I read here in forum that most of people prefere dual wielding and use bow as normal weapons but i cant understand 2 things, i hope you can help me

what is difference using dual swords/axes/hammers or combo(like you say)?
and... the weapons which have magical damage are supposed to increase spellpower or something like that or is like mellee damage(if yes what is differences and what is better) thanks for info and good game
