If possible get one with a dedicated video card, because they're simply better than built-in ones that you can buy. Might be useful later on, though you won't notice a difference with just the things you state in your question.
hard drive: simply go for as much as you can. If you're a regular user with some photos, some music, etc., then 80GB or so should suffice. But the more the merrier, it'll end up being filled at some point, I guarantee, so buy while you can (it's cheap storage anyway).