Think carefully before you commit loadsamoney. I've tried local papers a couple of times and they're a waste of money. The ad only appears for a very short time, then the paper is binned. You have to be VERY lucky to get your money back. If you've got a decent advertising budget, you'd be better off using something with a year's "shelf life" - Yellow Pages, Thompson's, local magazines etc. These work for you month after month, a newspaper works for a day, or a week at best.
Cheers,
Ian