Laptop Cooling Pad?

What is the best laptop cooling pad for a macbook (13'' is mine). I can't find a good answer anywhere. I'd love for it to be under $30 if possible and be good for on lap use.
Thanks!
If this isn't the right place to place this thread then I appologize in advance.

PodiumPad by roadtools.

I have one under my MB. I love it. It's under $30. Here's the answer elsewhere.

(apology accepted)

I have reviewed two notebook stands...not exactly coolers but here are the links...
koolsink review
xt-stand review

I like the xt-stand especially for its extreme portability and the koolsink because it really cools rather good.

I have the Targus Podium Coolpad under my 13" mb and i swear by it!
The height is adjustable, it has 360-degree swivel ideal for presentations etc, It sits comfortably on the lap, and it comes in either black or white at a price under $30.

http://www.targus.com/us/product_details.asp?sku=PA241U

tweaked said:

I have the Targus Podium Coolpad under my 13" mb and i swear by it!
The height is adjustable, it has 360-degree swivel ideal for presentations etc, It sits comfortably on the lap, and it comes in either black or white at a price under $30.

http://www.targus.com/us/product_details.asp?sku=PA241U

Click to expand...

I can get behind this product also. It is virtually identical to the roadtools pad.