Make it a generic commercial phrase: MiamiWidgets, SteelWidgets, LargeBlueWidgets. Focus = commercial
Check the Overture keyword results.
Check Google for the frequency of the phrase "in quotes". Is it >100,000 hits?
Ask "how commercially viable is this phrase"? What's the PPC value of the phrase? Is the phrase for a thing or service that people routinely search for online? Does the phrase has a future?
Is there a significant ad inventory for the phrase?
Go looking for domains.
Okay fellow domainers, at the risk of giving the newcomers and the women who are now intrigued :) a leg up in the domain game, share some of your tips and tricks for success in the art of predictive domaining.
~4,900,000 "hits".
Exact match results = hits in my book.