I guess thats why some of the articles were telling me to stay away from the NTFS format for a data sharing partition.
Im currently reading an article about setting up a xp/ubuntu/home setup:
Win/NTFS+Fiesty/home
Its quite long and im only half way through it but hopefully it will explain how this home partition is supposed to work.
edit: ok that article tells me how to do it in extreme detail (eyes are bulging now :P), but i found another article that tells me how to use it once im in ubuntu which is what i wanted, so i know that space was going to be used for something. I like to use every bit of space i can get :P.
Aritlce:
Ubuntu Unleashed: Easily Setup Seperate /home partition in Ubuntu!
So i guess this is what im going to go with:
20gigs XP pro
30gigs games on XP
400gigs NTFS shared data for both OSes
20gigs ubuntu
30gigs /home for ubuntu
Does this look good? Am i giving a excessive amount of space to a certain partition? How much will ubuntu take up if i move its "document and settings" (sorry im still used to the XP terminology) folder to the /home partition?
Here's another article explaining why its good for a /home partition:
Why a separate /home partition should be standard on Linux installs | Dan Ruscoe’s Blog
Guess a /home partition is a must for linux newbs since i will probably screw down the line with ubuntu and need to reinstall it, but at least i won't start from scratch. So i guess it pays to do my homework before jumping into something new.