laptop hard drive

Is there any type of adaptor that I can use to attatch a 40pin eide 3.5 inch hard drive to the 44 pin ata-6 hard drive connector on a laptop.

There are plenty of 2.5" to 3.5" adapters available:

http://sewelldirect.com/25to35ideconverter.asp

But I doubt you'll find anything that will allow you to connect a 3.5" drive directly to a laptop computer, as it won't physically fit.

I forgot to mention that it is not a laptop that I am looking to connect the 3.5 inch hard drive to it is in fact a Vantec AVOX Portable Audio/Video Player and this product just happens to take a laptop hard drive.
The reason why i would like to attach a 3.5 inch hard drive to this device is more capacity for less money.

I am also aware of the fact that the laptop hard drive interface only supplys 5 volts and not 12 volts
I can always improvise some type of power supply to give the hard drive the 12 volt power source it requires.

thank you in advance

Does anything on the following page help?

http://www.unitechelectronics.com/idecables.htm