If you're using Windows XP with an NTFS drive you won't be able to install Linux to iut without making a new partition (Linux can read NTFS drives but not write to them).
When it comes to laptop compatabilty the make of your laptop and the Linux distribution you choose make the biggest differences. I've installed Red Hat Linux to numerous Dell laptops with no real problems. Luckily, Debian is one of the better distros when it comes to compatabilty.
However, I'm going to have to agree with MicroMan in saying I don't think you'd be able to fully handle Debian. If you really want to use Linux I'd recommend going to a local book store and find a book on Fedora Core that come with CDs. FC is easier to use than others although Mandrake, Ubuntu, and SuSE are both pretty good. Debian and Slackware are harder to use and Gentoo with make you cry. While Linux is a good thing to know and use it's hard and can be a steep learning curve.
Quote: "No, I dont hate Linux - just dont like it for home use. Not stable enough..."
*looks at old Red Hat machine that's been up for over a year*
*looks at new Windows XP machine that needs to be restarted every week or so*
You must not keep everything up to date or know it very well to have that many problems.