'High Fidelity' and 'About a Boy' by Nick Hornby, I would recommended Fever Pitch as well, but it would be confusing to non-UK people because of all the English football teams and place names etc. Robert Harris books are good, but are quite heavy most of the time, dealing with difficult issues like the Holocaust and Stalinism. For a funny book, try 'Yes Man' by Danny Wallace.

Also, if you haven't already, try classic stuff like Orwell and Kafka.