Recovering from a Hard disk failure!

At last some of my software collection comes out to be useful.Actually I was having problem with my Seagate hard disk for last few days(disk error), so I decided to go to the Seagate service center for replacement, they told me that it will take at least 7 days for replac.. as I'm a compfreak
having a day without using a computer was not possible for me.
I thought why should I not try Linux Mint as it is a OS that can be boot from a cd(for more information:http://forfreaks.blogspot.com/2008/05/linux-mint-4.html).
On reaching home I switched on the computer and inserted my Linux Mint(bootable cd) & I was suprised to see it worked as there was no hard disk on my computer I was able to access net,watch movies etc
Isn't is really great.