Ive read a lot of Asimov, and have never had anything more than a luke-warm affection for his books. Here is a review of the Foundation books:
Omphalos' Book Reviews: Book Info
I guess Ill get to more of his books later, but I am not motivated to do it right now. He has some great ideas, but to me is a little bit boring in the exection. I liked the Gods Themselves, but was not wowed.