Offtopic » what do you think would work best for a new business?

Hello

I'm starting a new CCTV business, I have 15 years of IT experience and have installed and configured several CCTV systems in the past for businesses and residential customers. I plan on using high quality systems like Hikvision and cater small to mid-sized businesses primarily. I started by advertising on a local magazine without much success, I'm about to start advertising locally on Google and I might also send out direct mail pieces to businesses.

Can someone share some ideas that might help?

What type of businesses should I reach out the most? Restaurant, offices, liquor stores, gas stations, etc?
Besides word-of-mouth, what do you think would work best for a new business?

Please help.

I didn't find the right solution from the internet.

References:
http://www.cctvforum.com/viewtopic.php?t=44482
Real Estate marketing Video

Thank you.