Domains don't link...they point... Pointless to point a domain.
You could get a good domain though and build on Wordpress. They blog on it with contextual links back to your site.
Do it from a different IP and do not include your biz name or phone number in text form. This way google wont tie your sites together. You can put images of your biz name and phone number up.
Get domain names that are geo keywords for what you will be optimizing the landing page for....