I used
Parted Magic usb version to resize/move some of my ntfs partitions. Live CD version didn't like my sata dvd burner, it would load halfway then crap out.
What changes I made:
280gb ntfs > 250gb ntfs
280gb extended > 250gb extended
So now I have a 10gb (xp) - 30gb unallocated - extended [250gb ntfs].
Took a long time. I don't remember exactly how long but probably somewhere between 9-12hrs. I started it early morning/late night and it finished sometime in the afternoon.
I can't recommend resizing. Only resize if you have absolutely no other options and the data isn't super important.