Well, a small update on my linux exploration:
I went and got a copy of Partition Magic 8.0 which i will use to partition off 5gigs of my 40gig hd. I know theres an issue with PM which sometimes hides the MBR so i have to be careful i dont hide it.
Reading up on it a little, after getting advice from the board, Mandrake 9.1 seems to be the best option for anyone new to linux. It includes all of the functionality of linux but is encased in a nice package.
At the moment i am backing up most of my files so that in case anything does go terribly wrong i dont loose everything.
I have also got to go on a hunt for a 3.5" floppy cos i dont have any lying about. Its needed for the initial boot disc you have to create.
I have also printed instuctions on how to dual boot with winxp.
Finally, I hav ealso decided to for GRUB instead of lilo. GRUB is supposed to be more configurable yet just as reliable. My reasoning is that i am not used to either lilo or grub, so i a may as well go about getting used to the sooped up version

At the moment i don thave that much time to do the actual install and testing it all out. I am still preparing my pc for it and will then need to set aside a couple of hours to get it all up and running if there are no problems along the way...
I'll post some more once i have actually done the install and the basic configuration.