Overall, New Hampshire has a lower tax burden and cost of living than the other New England states, but property taxes can be exceptionally high depending on the town. For a list of 2008 property tax rates, click
here. Keep in mind that towns with the lowest property tax rates may have higher median house values.
Could you be a little more specific as to the kind of town you're looking for? "Quaint" and "safe" describes about 99% of the towns in New Hampshire. Would you prefer to live near the seacoast? Near the mountains? In the lakes region? Rural, suburban, urban? What's your ideal town size?
I tend to recommend the town of Meredith quite a bit on these boards, but I'll throw it out there for now because it seems to meet your basic requirements. But it's just one of many.