Does 31 count as the younger crowd?
I've used Rick Steve's guides for Rome & London and I thought they were Excellent. He does an excellent job. Most books are impersonal or an advertisement. This always seems to have more of a personal touch. You can usually pick them up at AAA stores (for a minor discount) or any bookstore. They have a website too.
I'm actually headed there next month so I've been looking into this. I have his best of europe guide which covers amsterdam, so I dont plan on picking his amsterdam book (I assume he has one - or maybe a netherlands book). I've read through the amsterdam section of the europe guide and its pretty detailed - enough for my short 4 days there.
If you find out anything better, I'm interested... I'll be there next month. Cant beat the winter time air fares to europe.