Please help me with High Speed Cameras?

I want to start filming skateboarding. I wanted the Casio Exilim EX-FH20. I heard it doesnt record sound. But I want a high speed camera that can have fisheye lens on it. If the Casio Exilim EX-FH20 can have fisheye lens can u please tell me which one. I cannot find a high speed camera that has fisheye. If it doesnt can you tell he differnt has speed camera, that can have fisheye lens, that is around 400$