here is a list i found of the various pieces of software that you can get for free or almost free by completing an offer thru TrialPay....
http://goodle.crmreports.com/2007/06/trial-pay-offer-132-programs-you-can.html

check it out, its pretty good....today i got a good anti-spyware program completely free just by signing up for the Zoom Panel....in the past 3 months i also got a free one-year license for KAspersky Anti-Virus and a free one-year license to Zone Alarm ISS in exchange for buying Roboform Pro at a discount...

there are several offers on TrialPay that a free or almost free, depending on what item of software you want to get...(Rhapsody, Free Credit Check offers, etc.)