I'll have to second the Partition Magic suggestion. I got a .iso image of it from some site on the internet a year or two ago (for "evaluation" purposes.) I had a problem where some partitions had to be resized without losing data. I only used it couple times, so I never bought it, but it worked like a champ for every task I gave it.

Edit: I just checked Kazaa and both versions 7 and 8 are available for "evaluation." Just seach for "partition magic iso."