Looking for the magic bullet in advertising....

I got a call today from an advertising rep... he is offering me a bundle [a phone book yellow pages ad in color+online site] for 'only' $177 per month, locked in for 12 months but no bill till April. He's got some good stats to back up his presentation but here's the conundrum.....I know I need advertising to kick-start my new career....but I'm seeing the money go in only one direction so far and I'm starting to feel a bit overwhelmed. [you remember that newbie feeling]

So my question is.....what's the best way to go in terms of advertising? I've put newsletters and business cards in the corner pizza place....I've sent out newsletters to my farm area and I've done some cold calling. I'm new to this city and my sphere of influence is small but I give out business cards every chance I get. I joined a Centre for Women in Business which will help me with my networking. I know it's still early but I don't want my advertising budget to be on overload!

I'd love to hear your opinions....

Thanks much!

Melva