Safely redirect visitors by PPC campaign keyword?

I don't want to "offend" Google

[androidtech]

Like a lot of people that use PPC campaigns, we get the keywords used by the visitor that clicked on our PPC ad delivered to us by the PPC company. The search phrase is delivered as a search argument to the main URL attached to our PPC ad.

Here's a hypothetical example. The sample keyword set is "red widgets, blue widgets, green widgets" and the sample main destination page is called "widgets-dot-html". Based on the keywords passed as the search argument by the PPC company, I want to redirect/send/etc. the visitor to the page that contains the specific information for that kind of widget. (red-widget-dot-html, blue-widget-dot-html, green-widget-dot-html, etc.). These are all static HML pages.

What is the proper way to do this that will seem the most legitimate to Google? Having seen so many strange threads regarding META refreshes, I worry that they are not the right path unless you have moved a page or changed domains (which doesn't apply here). I certainly don't want to use a technique that might look like "cloaking" or any other grey hat SEO technique to Google.

Anybody know?

Thanks.