Dead hard drive

I have bad news.

My computer died. To be specific, my hard disk drive died. Peacefully.

My tri-boot system is gone. All my music files are gone. All my experiments and things I learnt are gone. All my artwork including the Phoenity source files are gone. All gone.

Hard drive recovery is not my expertise. Please, I need help.

Update 22 November 2005: It seems that my hard drive is not completely dead but virtually dead. It simply ticks when the computer boots. Weird.