I always seem to be pimping this on here but the Remington D3701 is excellent. It is very high powered so dries your hair rapidly and is ionic so it smooths it down and stops frizz or static. My hair is naturally curly and used to dry it and straighten it but this hairdryer straightens it itself! I hardly use my straightners now!
It also has a boost button for extra-extra powerful drying and a cool shot button as well, you just flick the switch, no need to hold it down, and it comes with a slim concentrator nozzle. Not sure about the length of the cord, but argos does them so it should give you the details on there!