local keyword research strategy

I'm trying to get a list of keywords in my niche, (weight loss/wellness) that trigger the google 7 pack. How would you go about doing that? I tried searching for a tool that tells you what words will trigger the 7 back, and the only thing I found recommended was places scout, which looks too complicated/expensive for a newbie...

Maybe its just common sense though.... It seems as though the 7 pack is only triggered by professions or things that could be a place. like profession- nutritionist or a place -weight loss center. SO would I just pull up keywords in the google adwords tool, look at the short tail general keywords with high competition, and then manually search them in google, and check which ones trigger 7 pack. Is that a sound strategy? Or will I be missing some long tail that might trigger the 7 pack?

Also of course, when someone searches keyword + (their city) the map will show. HOWEVER, when you put those city searches into the adwords tool the data is too small to show anything. Is there any other keyword tool that will show really small volume, city based searches? Because although search volume may be very low, it may be very good for a business to rank for city specific searches because those are people that really want to find your local business.

What is your strategy for local keyword research?

As I didn't get any responses I decided to do my own research over the weekend.. I did find a free software called google pack finder, but it was for windows only so I didn't bother with it. I realized that I could use common sense to pick out the keywords that trigger google places. So I came up with a list of about 3-5 keywords that are relevant to my business, just by using common sense.

rrrrrrr why am I triggering the moderation system, it it because I'm trying to type the word city?

The Google Adwords tool does not typically do local keyword research very well and often comes up with a big goose egg when you search for City + Keyword. Google Insights for Search WAS of the coolest tools to drill down and do some serious LOCAL keyword research. I recommend for google com/trends/. Go it to see.

I just use googles webmaster keyword tool

I have always been using Google keyword tool for keyword research... its quite easy to use and gives lot of information on local and global searches for that particular keyword...