Hello Selim,
>Use Partition Magic software, this is a program you can use to make partitions without reinstalling everything, you can do what you wan. for me the best option is 10-30.

Is Partition Magic included with Windows XP?

>About the DVD drive letter, do not worry Partiton Magic performs a rutine to update the windows registry to replace all the references to the old drive letter and replaces with the newone.

I'm glad they thought of that.

>Be careful though, because theres is a little possibility that running this software could ruin all the data in your hard drive. It's never happend to me, but there is always a "might be"

Well, it's a new computer, just out of the box. I figure now is the best time to do it, as there is the smallest possible amount of user data to loose.

Thanks,