auto air adapter

Who makes auto-air power adapters for laptops. I am looking for one for a Gateway 400s I am thinking of buying, but they dont provide one. I checked Lind Electronics and they dont have one either.

Any other companies that make these things?

Thanks!

Targus makes a real nice one. Expensive though.

http://www.targus.com

thanks for the link! i think i have talked myself into going with an inverter instead though ...