How to figure out traffic for a term:
- expected clicks by Search Engine and Rank (overreports Google)
- Run an adwords campaign
Webmaster Central All Query Stats
- Download and run through the Google Webmaster Central Stats Converter
Sorry – listening more than typing.
According to Richard Zwicky links from locally hosted websites will help you rank for local searches although Rand counters that this might be more because the anchor text of inbound links or the text on their site is targeted to the location.