On any web site.
To start with, you need to use your key word and phrases in content kinda like this:
At North Florida Telephones we install NEC Elite phone systems in Ocala, Gainesville etc. Also installing Network Cabling in the Gainesville and Ocala areas. For Service on your Network or your NEC Elite Telephone System we are top notch so give us at North Florida Telephone. ect.ect.
That's for content with-in the page, along with what vwebworld stated above Titles, descriptions in the meta tags...you'll be headed in the right direction.
You should also get links with your key word/keyword phrases everywhere you can, links from sites within your industry will be some of the biggest kicks you'll get along with links from directories for your pr, and if you don't have a google bar, you should get one.

Larry I would also invest in a new logo.
I'm sure someone else will see other things.

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