I have an LG Viewty, if that helps.
I got one yesterday at a place called cash it in, I gave them one of my old chargers and got it for £2! was meant to be a fiver but she liked me so :3 thank you anyway! :P
a genuine, original LG charger will set you back around 20 quid.. a 3rd party charger from say ebay will cost you around 3 quid