I was in your position (beginner) about six months ago.
I bought a D90 and 18-105mm lens and I love the both. In the early days, I had enough to learn, without adding changing lenses. Having said that, lots of people are equally happy with the 18-55mm lens. I'm sure it is an equally good beginner's lens.
I took the chance to buy a bargain 55-300mm 2 months ago but to be honest I don't use it that much. Mostly, I haven't perfected my hand holding technique, so I'm not steady enough at the longer focal lengths.
Carrying the extra lens around isn't a hassle if you have a good bag.
I really wanted to reassure you that for at least one beginner, the 18-105mm was an excellent choice.
EDIT: I would say the 35mm f1.8 lens for low light shooting (as David mentioned) is worth considering in a beginner's kit. For me, it would rate above telephoto. (not reflected in my lens choice ).