The following resources address planning, purchase, installation and commissioning of inverter-driven ductless heat pumps.  The material was originally developed for a one-hour webinar hosted by the Association of Facilities Engineering http://www.afe.org/education/webinars.cfm, and has since been delivered to other groups of building professionals.   Contact for more information about regional training.

Presentation: Ductless Heat Pump Technology (3.5Mb .pdf)
Factsheets, Articles and Video(88kb .pdf)
Sample Fuel Cost Calculations(503kb .ppt)
Heating System Calculator(web page)
Cooling System Calculator(web page)
Manufacturers (89kb .pdf)
Sizing Example (418kb .ppt)
Ventilation (377kb .ppt)

The Northwest Energy Efficiency Alliance operates a market transformation project through utilities in ID, OR, WA and MT:

Program Details: www.nwductless.com
Market Research Report: Ductless Heat Pump Market Research and Analysis
Consumer Site: www.goingductless.com

Incentives may be available for residential installations through your electric utility