I do love the British humor. I like Japanese humor too though and it's very different. (Not shitty Japanese humor like in mainstream anime, I mean the hardcore absurd humor in things like "So Long, Mr. Despair"). I often get annoyed with American humor because it's very cliche and because for some reason I rarely see main characters who can laugh at themselves here. I'm sick of all the hard, grizzled toughguys who can't do better than sarcasm. It's like an endless stream of batmans. But I'll check out this George R.R. fellow if you recommend him.
As for books on tape, I'm not sure if I'd be able to listen well enough. I don't absorb things as well by listening as I do by looking. But it'd certainly be worth a try!
And definitely look at Sandman. Some of the artists involved are pretty wretched, but the story is very good. Mostly dark, but I enjoyed it that way. He isn't in the first few books, but I loved Destruction when he showed up.