Ah I see.
I use the standard 18-55mm Nikkor that comes with the D40, and a 55-200mm matching lens. These days you can get the 200 in a VR model but at the time of my purchase it wasn't available. To this date I've had no need for a longer range lens and since I'm mostly a nature photographer, the specifications of both lenses are fine 99% of the time. For the price, I don't really think you can go wrong with Nikkor.
Be warned however, that you'll likely find yourself switching lenses more often than you'd like. If you're not comfortable with the greater risk of having to clean your camera sensor and you don't mind paying some extra cash and carrying a heavier lens around, you might want to look at the 55-200 Nikkor or similar.
Oh, and it's worth noting that 18-34mm isn't nearly enough of a range to take decent wide angle shots. It's really only useful for close up shots. If you want to dabble with wide angle, you might want to leave out the 18-55 entirely and get say a 28-200 lens and a wide angle lens.