Dead Hard Drive

The hard drive of my Dell Inspiron 8000 dropped dead yesterday. It has not much warning. I tried to power the notebook up, but then it refused to boot into Windows. You can hear the clicking sound coming from the hard drive, and you go - Doh! I reported it to work today, and hopefully I'll get a new hard drive in a few days. However, meanwhile I don't have a computer to use at home and I have to temporarily use Vivian's desktop box... It is a Hitachi 20Gb drive, and I'm hoping to get a 30Gb in a few days. But the thing that really troubles me is the data on that drive. I think I will have a hard time trying to recover the data :(