If you have space on one of your hard disks to create a Linux partition, why not leave XP where it is and install Linux with it to create a dual boot system? Linux usually comes with a boot manager like LILO or GRUB which enables you to do this. You can then decide which operating system you want to use when you boot your computer.
There is a way to get the best of both worlds without risking losing any data
Ununtu comes with something called Wubi its lets you run Linux and play around with it without removing windows and its easy to remove if you don't like it.
http://wubi-installer.org/
disadvantages of Wipeing xp are
1. if you don't have the disc you will not be able to reinstall it
2. you will lose all data programs installed music and media
Why disadvantages would there be if I wiped out XP and installed Linux?
Linear Mode
