I'd like to share with you folks these video reviews on two cost-friendly and effective notebook coolers. I received these on two different dates so the tests are not similar. Note to Moderators: Administrator has allowed me to post Youtube videos.
Hope these reviews were helpful!
Zalman ZM-NC1500 Ultra Quiet Notebook Cooler
This is the detailed review of the cooler, including its features and cooling performance during system idle and before and after gaming. The Zalman ZM-NC1500 is a well-constructed notebook cooler that just works. It does an amazing job of cooling, using its aluminum frame and two centrifugal fans. Although it does a great job of evenly dispersing cool air, it is limited by the position of its cooling pad. I recommend getting this cooler but make sure your laptops intakes matches the position of the Zalmans cooling area. Those with laptops which have intake vents placed right over the coolers holes will see much lower temps, than those who dont. [flash=640,385]http
/www.youtube.com/v/7PxzZ4Jr4v4&hl=en_US&fs=1&[/flash]

Cooler Master Notepal U2 Notebook Cooler
With its aluminum mesh design and positionable dual fans, this notebook cooler can deliver promising results. It's also very lightweight and designed to be portable. Please watch my video review to see how well it performs on a 15" laptop, complete with temperature tests, with and without the cooler during idle and before and after gaming. The video will also show the detailed review of this notebook cooler.[flash=640,385]http
/www.youtube.com/v/TBZFLHUmROE&hl=en_US&fs=1&[/flash]

Hope these reviews were helpful!