For laptop cooler (i assume you will have at least 17 inch laptop), i would suggest one of the following:
Thermaltake massive LX/ST 23 or Cm Storm (this one requires a power socket). I suggest you google those to have a look.
I heard the XZXT Cryo is a very good one, but i could not test it myslef.
I did test others (lian li, zalman among others) and they basicly are useless most times.
Another option (im going for this one) is getting some 12V fans, a USB conector, a 5v to 12v exchanger and making a custom cooler
. Or even use them on 5v mode (schyte gentle thypoon in my case).