take it to a professional data recovery company.
depending on how important the info is depends on how much you can afford to pay. some recovery's can be fairly expensive.
If its full of tv episodes downloaded off the net, with dvdrip divx's and pron then youre better off cutting your losses and going to a lan party to get it all back.
if there is genuine info on there that you can lose, you might have to find a way to justify spending money on professional services.
yellow pages will help you out with finding them...