One exciting new method of weightloss surgery is the "mini-gastric bypass," or MGB, which uses laparoscopic methods and only takes 30-45 minutes to perform. Even better, the incision is small, and you'll require only 24 hours of hospitalization for this procedure.
Weightloss surgery is such a drastic solution to a weight problem that you should consider very seriously before you have it performed. It's expensive, painful, and prone to complications, so it's should only be considered if you're dangerously obese -- not just pleasingly plump.