Key Tone Question

Hello, I just want to know that is there any software for Nokia 7650 which can change the default "Key Tone" with some other nice Key tone?????
As we all proud owners of N-7650 are bored with same Key tone!
Please reply me back..... & if there is no such application like this , then we should Contact/write to Nokia Care or some other Nokia software developing company to develop an application which can change some of the default tones Like "Key Tone", "Connecting Tone", "Charging Tone" Etc . You agreed with me or not?