Surveys.com accept members worldwide. They send about 1- 2 surveys a month, about half of their surveys award you a sweepstakes entries and half pay cash. I have been a member of Surveys.com for over 2 years, and have done quite some surveys that paid me cash. They paid me via Paypal.
Update: January 2010: Surveys.com is rolling out a new point system, however it is not fully functioning yet! You can still join but I suggest not taking surveys until their system is ready!
Updated Review: March 2011:
Surveys.com finally finished implementing their reward system. Members now earn points for completing every survey (and if you don’t qualify for a survey, you will get 25 points. To redeem your points, you need to log into your account, and click the “My Incentive” link on left menu, which takes you a separate “reward” site/section (you need to input username and password which is different from your main Surveys.com site). You can redeem your points for various merchandises, and they do offer a very wide selection of merchandises that you can choose from.
I like their recent changes, just hope they offer cash reward or at least Amazon Gift Certificates or other gift cards (maybe that’s something they will do in the future??) But at least they are getting better, and I do recommend Surveys.com!