try guy gavriel kay (although his first trilogy was the best, by far, he's still pretty fab, in my book); sheri s. tepper (fantasy with a brain); michael marshall smith (the first books, not the michael marshall stuff, which isn't fantasy); clive barker (i think you'd like him - nasty stuff); charles de lint; julian may's earlier stuff (she obviously got bored); jeff noon.
that's off the top of my head, though. i'm less into the SF hardware stuff like asimov, so can't talk much about that.